Features & BenefitsSpecificationsApplications

1965-91 GM Truck 5.0/5.7L with Carburetor 1 5/8" Stainless Steel Shorty Header

Emissions code 1 Emissions CodeC.A.R.B. EO Number: D-57-48
Part Number: 1830S-6 In Stock
FAQs
  • JBA Performance Exhaust 1830S-6 1 5/8" Header Shorty Stainless Steel GM Truck 5.0/5.7L with Carburetor
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Free shipping on orders over $100 in contiguous 48 states.

Easy Returns

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Reliable Quality

Products built to last for enduring performance.

Features & Benefits

  • Mandrel bent stainless steel tube
  • Proprietary JBA Firecone collector
  • Factory style emission connections
  • Extra thick collector domes
  • 3/8" thick machined flanges with Oversized exhaust ports

JBA shorty headers are one of the foremost performance upgrades you can bestow upon your beloved car, truck, or SUV. JBA Headers are significantly less restrictive than stock manifolds and dramatically increase the power and efficiency of your engine. Each header is constructed from durable stainless steel to endure the abuse of racing, towing, and daily driving – built to withstand it all. JBA’s proprietary Firecone collector design uses race proven technology for producing maximum power and torque gains where you drive most. Each system includes factory style emission connections and high-quality hardware for a professional no-leak installation.

Need Help? Talk to our experts

(913) 808-2376 Email

Specifications
Finish Uncoated
Design Shorty
Primary Tubing Diameter 1.625 Inches
Collector Port Diameter 2.5 Inches
Tube Wall Thickness 0.059 Inches
Flange Thickness 3/8 Inches
Oxygen Sensor Port Yes
Gasket Or Seal Included Yes
Mounting Hardware Included Yes
Grade Type Performance
Color Grey
Sheen Level Matte

Installation instructions
Instruction Manual
Installation Instructions
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Shipping & Delivery

Our ignition and exhaust products ship from our warehouse in Lenexa, KS. Our normal shipping time is 2-3 business days for in-stock parts.

 Shipping Class Order Value Shipping Cost
UPS Ground $0 - 49.99 $6.99 flat rate
UPS Ground $50 - 108.99 $7.49 flat rate
UPS Ground $109+ Free


  • At this time, PerTronix does not offer expedited shipping options from our website.

  • All packages must be inspected upon receipt for any missing or damaged goods and claims for such must be made within 7 days of receipt.

  • PerTronix does not currently ship our products internationally from our web store. For international orders call 909-599-5955 or connect with us here.

  • Once an item has tracking info, it cannot be cancelled. If you decide you don’t want the items after shipment, please take receipt of the item and process it via our return policy. Thank you for understanding!

 

Shipping Dock Hours of Operations

7:00am to 4:00pm CST Monday-Friday

Receiving Dock Numbers: 7 and 8

Shipping Dock Numbers: 13, 14, and 15

Returns, Replacements & Warranty

Returns at Pertronix are accepted within 90 days of purchase with prior authorization, ensuring items are in new, resalable condition. To initiate a return, call for an RGA and follow provided instructions. Customers are responsible for return shipping, using a trackable method.

Refunds exclude initial shipping and handling fees and may be subject to a restocking fee. For defective or damaged items, contact Pertronix directly. We are not responsible for user-initiated damage/loss of parts.

For complete details, visit our Returns page.

Warranty

Fitment

Vehicles

Year / Make / Model Engine Type Engine Size(s) Notes
1965-1967 Chevrolet C10 Pickup V8 Cubic Inches: 283
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1966-1967 Chevrolet C10 Pickup V8 Cubic Inches: 327
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1968-1973 Chevrolet C10 Pickup V8 Cubic Inches: 307
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1968 Chevrolet C10 Pickup V8 Cubic Inches: 327
  • without Smog Pump
  • Installation requires welding/modification to exhaust system.
  • Use big block flapper valve for smog legal applications.
  • Replacement spark plug wire and/or boot included.
1969-1974 Chevrolet C10 Pickup V8 Cubic Inches: 350
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1965-1967 Chevrolet C20 Pickup V8 Cubic Inches: 283
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1966-1967 Chevrolet C20 Pickup V8 Cubic Inches: 327
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1968-1973 Chevrolet C20 Pickup V8 Cubic Inches: 307
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1968-1969 Chevrolet C20 Pickup V8 Cubic Inches: 327
  • Installation requires welding/modification to exhaust system.
  • Use big block flapper valve for smog legal applications.
  • Replacement spark plug wire and/or boot included.
1969-1974 Chevrolet C20 Pickup V8 Cubic Inches: 350
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1965-1967 Chevrolet C30 Pickup V8 Cubic Inches: 283
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1966-1967 Chevrolet C30 Pickup V8 Cubic Inches: 327
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1968-1973 Chevrolet C30 Pickup V8 Cubic Inches: 307
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1968-1969 Chevrolet C30 Pickup V8 Cubic Inches: 327
  • Installation requires welding/modification to exhaust system.
  • Use big block flapper valve for smog legal applications.
  • Replacement spark plug wire and/or boot included.
1969-1974 Chevrolet C30 Pickup V8 Cubic Inches: 350
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1965-1967 Chevrolet K10 Pickup V8 Cubic Inches: 283
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1966-1967 Chevrolet K10 Pickup V8 Cubic Inches: 327
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1968-1973 Chevrolet K10 Pickup V8 Cubic Inches: 307
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1968-1969 Chevrolet K10 Pickup V8 Cubic Inches: 327
  • Installation requires welding/modification to exhaust system.
  • Use big block flapper valve for smog legal applications.
  • Replacement spark plug wire and/or boot included.
1969-1974 Chevrolet K10 Pickup V8 Cubic Inches: 350
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1965-1967 Chevrolet K20 Pickup V8 Cubic Inches: 283
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1966-1967 Chevrolet K20 Pickup V8 Cubic Inches: 327
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1968-1973 Chevrolet K20 Pickup V8 Cubic Inches: 307
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1968-1969 Chevrolet K20 Pickup V8 Cubic Inches: 327
  • Installation requires welding/modification to exhaust system.
  • Use big block flapper valve for smog legal applications.
  • Replacement spark plug wire and/or boot included.
1969-1974 Chevrolet K20 Pickup V8 Cubic Inches: 350
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1968-1973 Chevrolet K30 Pickup V8 Cubic Inches: 307
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1968-1969 Chevrolet K30 Pickup V8 Cubic Inches: 327
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1969-1974 Chevrolet K30 Pickup V8 Cubic Inches: 350
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1964-1967 Chevrolet Chevelle V8 Cubic Inches: 283, 327
  • without Smog Pump
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
  • Automatic transmission only.
  • For use with straight plug heads only.
  • Installation requires welding/modification to exhaust system.
  • Use big block flapper valve for smog legal applications.
  • Replacement spark plug wire and/or boot included.
1968-1973 Chevrolet Chevelle V8 Cubic Inches: 307, 350
  • without Smog Pump
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
  • Automatic transmission only.
  • For use with straight plug heads only.
  • Use big block flapper valve for smog legal applications
1968 Chevrolet Chevelle V8 Cubic Inches: 327
  • Installation requires welding/modification to exhaust system.
  • Use big block flapper valve for smog legal applications.
  • Replacement spark plug wire and/or boot included.
1970-1973 Chevrolet Chevelle V8 Cubic Inches: 400
  • without Smog Pump
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
  • Automatic transmission only.
  • For use with straight plug heads only.
  • Use big block flapper valve for smog legal applications
1969-1974 Chevrolet Blazer V8 Cubic Inches: 350
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
  • Use big block flapper valve for smog legal applications
1969-1973 Chevrolet Blazer V8 Cubic Inches: 307
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
  • Use big block flapper valve for smog legal applications
1975-1986 Chevrolet K5 Blazer V8 Liters: 5.7
Cubic Inches: 350
  • without Smog Pump
  • Installation requires welding/modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1975-1979 Chevrolet K5 Blazer V8 Cubic Inches: 400
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1977-1986 Chevrolet K5 Blazer V8 Liters: 5.0
Cubic Inches: 305
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
  • Installation requires welding/modification to exhaust system.
1975-1986 Chevrolet C10 V8 Cubic Inches: 350
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1976-1980 Chevrolet C10 V8 Cubic Inches: 400
  • without Smog Pump
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
1977-1986 Chevrolet C10 V8 Cubic Inches: 305
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1967 Chevrolet C10 Suburban V8 Cubic Inches: 283, 327
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1968-1973 Chevrolet C10 Suburban V8 Cubic Inches: 307
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1968-1969 Chevrolet C10 Suburban V8 Cubic Inches: 327
  • without Smog Pump
  • Installation requires welding/modification to exhaust system.
  • Use big block flapper valve for smog legal applications.
  • Replacement spark plug wire and/or boot included.
1969-1986 Chevrolet C10 Suburban V8 Cubic Inches: 350
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1977-1979 Chevrolet C10 Suburban V8 Cubic Inches: 305
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1981-1986 Chevrolet C10 Suburban V8 Cubic Inches: 305
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1975-1987 Chevrolet C20 V8 Cubic Inches: 350
  • without Smog Pump
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
1976-1980 Chevrolet C20 V8 Cubic Inches: 400
  • without Smog Pump
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
1977-1978 Chevrolet C20 V8 Cubic Inches: 305
  • without Smog Pump
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
1981-1986 Chevrolet C20 V8 Cubic Inches: 305
  • without Smog Pump
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
1967 Chevrolet C20 Suburban V8 Cubic Inches: 283, 327
  • without Smog Pump
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
1968-1973 Chevrolet C20 Suburban V8 Cubic Inches: 307
  • without Smog Pump
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
1968-1969 Chevrolet C20 Suburban V8 Cubic Inches: 327
  • Installation requires welding/modification to exhaust system.
  • Use big block flapper valve for smog legal applications.
  • Replacement spark plug wire and/or boot included.
1969-1986 Chevrolet C20 Suburban V8 Cubic Inches: 350
  • without Smog Pump
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
1976-1980 Chevrolet C20 Suburban V8 Cubic Inches: 400
  • without Smog Pump
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
1977-1979 Chevrolet C20 Suburban V8 Cubic Inches: 305
  • without Smog Pump
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
1981-1986 Chevrolet C20 Suburban V8 Cubic Inches: 305
  • without Smog Pump
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
1975-1986 Chevrolet C30 V8 Cubic Inches: 350
  • without Smog Pump
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
1976-1978 Chevrolet C30 V8 Cubic Inches: 400
  • without Smog Pump
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
1978 Chevrolet C30 V8 Cubic Inches: 305
  • without Smog Pump
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
1964-1967 Chevrolet El Camino V8 Cubic Inches: 283, 327
  • without Smog Pump
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
  • Automatic transmission only.
  • For use with straight plug heads only.
  • Installation requires welding/modification to exhaust system.
  • Use big block flapper valve for smog legal applications.
  • Replacement spark plug wire and/or boot included.
1968-1979 Chevrolet El Camino V8 Cubic Inches: 350
  • without Smog Pump
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
  • For use with straight plug heads only.
  • Automatic transmission only.
1968-1973 Chevrolet El Camino V8 Cubic Inches: 307
  • without Smog Pump
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
  • Automatic transmission only.
  • For use with straight plug heads only.
1968-1969 Chevrolet El Camino V8 Cubic Inches: 327
  • Installation requires welding/modification to exhaust system.
  • Replacement spark plug wire and/or boot included.
1970-1976 Chevrolet El Camino V8 Cubic Inches: 400
  • without Smog Pump
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
  • Automatic transmission only.
  • For use with straight plug heads only.
1976-1987 Chevrolet El Camino V8 Cubic Inches: 305
  • without Smog Pump
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
  • Automatic transmission only.
  • For use with straight plug heads only.
1975-1986 Chevrolet K10 V8 Liters: 5.7
Cubic Inches: 350
  • without Smog Pump
  • Installation requires welding/modification to exhaust system.
  • Use big block flapper valve for smog legal applications. valve required
  • Replacement spark plug wire and/or boot included.
1977-1978 Chevrolet K10 V8 Liters: 5.0
Cubic Inches: 305
  • without Smog Pump
  • Installation requires welding/modification to exhaust system.
  • Use big block flapper valve for smog legal applications. Valve
  • Replacement spark plug wire and/or boot included.
1981-1986 Chevrolet K10 V8 Liters: 5.0
Cubic Inches: 305
  • without Smog Pump
  • Installation requires welding/modification to exhaust system.
  • Use big block flapper valve for smog legal applications. Valve
  • Replacement spark plug wire and/or boot included.
1967 Chevrolet K10 Suburban V8 Cubic Inches: 283, 327
  • without Smog Pump
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
1968-1973 Chevrolet K10 Suburban V8 Cubic Inches: 307
  • without Smog Pump
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
1968-1969 Chevrolet K10 Suburban V8 Cubic Inches: 327
  • Installation requires welding/modification to exhaust system.
  • Use big block flapper valve for smog legal applications.
  • Replacement spark plug wire and/or boot included.
1969-1986 Chevrolet K10 Suburban V8 Cubic Inches: 350
  • without Smog Pump
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
1975-1979 Chevrolet K10 Suburban V8 Cubic Inches: 400
  • without Smog Pump
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
1977-1979 Chevrolet K10 Suburban V8 Cubic Inches: 305
  • without Smog Pump
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
1981 Chevrolet K10 Suburban V8 Cubic Inches: 305
  • without Smog Pump
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
1983 Chevrolet K10 Suburban V8 Cubic Inches: 305
  • without Smog Pump
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
1986 Chevrolet K10 Suburban V8 Cubic Inches: 305
  • without Smog Pump
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
1975-1986 Chevrolet K20 V8 Cubic Inches: 350
  • without Smog Pump
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
1975-1980 Chevrolet K20 V8 Cubic Inches: 400
  • without Smog Pump
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
1977-1978 Chevrolet K20 V8 Cubic Inches: 305
  • without Smog Pump
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
1985 Chevrolet K20 V8 Cubic Inches: 305
  • without Smog Pump
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
1967 Chevrolet K20 Suburban V8 Cubic Inches: 283, 327
  • without Smog Pump
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
1968-1973 Chevrolet K20 Suburban V8 Cubic Inches: 307
  • without Smog Pump
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
1968-1969 Chevrolet K20 Suburban V8 Cubic Inches: 327
  • Installation requires welding/modification to exhaust system.
  • Use big block flapper valve for smog legal applications.
  • Replacement spark plug wire and/or boot included.
1969-1986 Chevrolet K20 Suburban V8 Cubic Inches: 350
  • without Smog Pump
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
1975-1980 Chevrolet K20 Suburban V8 Cubic Inches: 400
  • without Smog Pump
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
1977-1978 Chevrolet K20 Suburban V8 Cubic Inches: 305
  • without Smog Pump
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
1977-1986 Chevrolet K30 V8 Cubic Inches: 350
  • without Smog Pump
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
1977-1980 Chevrolet K30 V8 Cubic Inches: 400
  • without Smog Pump
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
1964-1967 Chevrolet Malibu V8 Cubic Inches: 283, 327
  • without Smog Pump
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
  • Automatic transmission only.
  • For use with straight plug heads only.
1973-1983 Chevrolet Malibu V8 Cubic Inches: 350
  • without Smog Pump
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
  • Automatic transmission only.
  • For use with straight plug heads only.
1973-1976 Chevrolet Malibu V8 Cubic Inches: 400
  • without Smog Pump
  • Use big block flapper valve for smog legal applications
  • For use with straight plug heads only.
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
  • Automatic transmission only.
1973 Chevrolet Malibu V8 Cubic Inches: 307
  • without Smog Pump
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
  • Automatic transmission only.
  • For use with straight plug heads only.
1976-1983 Chevrolet Malibu V8 Cubic Inches: 305
  • without Smog Pump
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
  • Automatic transmission only.
  • For use with straight plug heads only.
1982-1985 Chevrolet C15 V8 Cubic Inches: 350
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1983-1986 Chevrolet C35 V8 Cubic Inches: 350
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1967 GMC C15/C1500 Pickup V8 Cubic Inches: 283, 327
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1968-1973 GMC C15/C1500 Pickup V8 Cubic Inches: 307
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1968 GMC C15/C1500 Pickup V8 Cubic Inches: 327
  • Installation requires welding/modification to exhaust system.
  • Use big block flapper valve for smog legal applications.
  • Replacement spark plug wire and/or boot included.
1969-1974 GMC C15/C1500 Pickup V8 Cubic Inches: 350
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1967 GMC C15/C1500 Suburban V8 Cubic Inches: 283, 327
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1968-1973 GMC C15/C1500 Suburban V8 Cubic Inches: 307
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1968 GMC C15/C1500 Suburban V8 Cubic Inches: 327
  • Installation requires welding/modification to exhaust system.
  • Use big block flapper valve for smog legal applications.
  • Replacement spark plug wire and/or boot included.
1969-1974 GMC C15/C1500 Suburban V8 Cubic Inches: 350
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1967 GMC C25/C2500 Pickup V8 Cubic Inches: 283, 327
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1968-1973 GMC C25/C2500 Pickup V8 Cubic Inches: 307
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1969-1974 GMC C25/C2500 Pickup V8 Cubic Inches: 350
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1967 GMC C25/C2500 Suburban V8 Cubic Inches: 283, 327
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1968-1973 GMC C25/C2500 Suburban V8 Cubic Inches: 307
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1968 GMC C25/C2500 Suburban V8 Cubic Inches: 327
  • Installation requires welding/modification to exhaust system.
  • Use big block flapper valve for smog legal applications.
  • Replacement spark plug wire and/or boot included.
1969-1974 GMC C25/C2500 Suburban V8 Cubic Inches: 350
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1967 GMC C35/C3500 Pickup V8 Cubic Inches: 283
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1968-1973 GMC C35/C3500 Pickup V8 Cubic Inches: 307
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1969-1974 GMC C35/C3500 Pickup V8 Cubic Inches: 350
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1967 GMC K15/K1500 Pickup V8 Cubic Inches: 283, 327
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1968-1973 GMC K15/K1500 Pickup V8 Cubic Inches: 307
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1968 GMC K15/K1500 Pickup V8 Cubic Inches: 327
  • Installation requires welding/modification to exhaust system.
  • Use big block flapper valve for smog legal applications.
  • Replacement spark plug wire and/or boot included.
1969-1974 GMC K15/K1500 Pickup V8 Cubic Inches: 350
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1967 GMC K15/K1500 Suburban V8 Cubic Inches: 283, 327
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1968-1973 GMC K15/K1500 Suburban V8 Cubic Inches: 307
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1968 GMC K15/K1500 Suburban V8 Cubic Inches: 327
  • Installation requires welding/modification to exhaust system.
  • Use big block flapper valve for smog legal applications.
  • Replacement spark plug wire and/or boot included.
1969-1974 GMC K15/K1500 Suburban V8 Cubic Inches: 350
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1967 GMC K25/K2500 Pickup V8 Cubic Inches: 283, 327
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1968-1973 GMC K25/K2500 Pickup V8 Cubic Inches: 307
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1968 GMC K25/K2500 Pickup V8 Cubic Inches: 327
  • Installation requires welding/modification to exhaust system.
  • Use big block flapper valve for smog legal applications.
  • Replacement spark plug wire and/or boot included.
1969-1974 GMC K25/K2500 Pickup V8 Cubic Inches: 350
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1967-1968 GMC K25/K2500 Suburban V8 Cubic Inches: 327
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1967 GMC K25/K2500 Suburban V8 Cubic Inches: 283
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1968-1973 GMC K25/K2500 Suburban V8 Cubic Inches: 307
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1968 GMC K25/K2500 Suburban V8 Cubic Inches: 327
  • Installation requires welding/modification to exhaust system.
  • Use big block flapper valve for smog legal applications.
  • Replacement spark plug wire and/or boot included.
1969-1974 GMC K25/K2500 Suburban V8 Cubic Inches: 350
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1968-1973 GMC K35/K3500 Pickup V8 Cubic Inches: 307
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1969-1974 GMC K35/K3500 Pickup V8 Cubic Inches: 350
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1979-1986 GMC C1500 V8 Cubic Inches: 305, 350
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1979-1980 GMC C1500 V8 Cubic Inches: 400
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1979-1986 GMC C1500 Suburban V8 Cubic Inches: 350
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1979 GMC C1500 Suburban V8 Cubic Inches: 305
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1981-1986 GMC C1500 Suburban V8 Cubic Inches: 305
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1979-1986 GMC C2500 V8 Cubic Inches: 350
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1979 GMC C2500 V8 Cubic Inches: 400
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1980-1986 GMC C2500 V8 Cubic Inches: 305
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1979-1986 GMC C2500 Suburban V8 Cubic Inches: 350
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1980 GMC C2500 Suburban V8 Cubic Inches: 400
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1982-1986 GMC C2500 Suburban V8 Cubic Inches: 305
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1979-1986 GMC C3500 V8 Cubic Inches: 350
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1979 GMC C3500 V8 Cubic Inches: 400
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1986 GMC C3500 V8 Cubic Inches: 305
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1979-1986 GMC K1500 V8 Cubic Inches: 350
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1979-1980 GMC K1500 V8 Cubic Inches: 400
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1981-1986 GMC K1500 V8 Cubic Inches: 305
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1979-1986 GMC K1500 Suburban V8 Cubic Inches: 350
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1979-1980 GMC K1500 Suburban V8 Cubic Inches: 400
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1979 GMC K1500 Suburban V8 Cubic Inches: 305
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1982 GMC K1500 Suburban V8 Cubic Inches: 305
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1979-1986 GMC K2500 V8 Cubic Inches: 350
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1979-1980 GMC K2500 V8 Cubic Inches: 400
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1979-1986 GMC K2500 Suburban V8 Cubic Inches: 350
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1979-1980 GMC K2500 Suburban V8 Cubic Inches: 400
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1979-1986 GMC K3500 V8 Cubic Inches: 350
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1979-1980 GMC K3500 V8 Cubic Inches: 400
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1975-1978 GMC C15 V8 Cubic Inches: 350
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1976 GMC C15 V8 Cubic Inches: 400
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1978 GMC C15 V8 Cubic Inches: 400
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1977-1978 GMC C15 V8 Cubic Inches: 305
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1977-1978 GMC C15 Suburban V8 Cubic Inches: 305
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1975-1978 GMC C25 V8 Cubic Inches: 350
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1976-1978 GMC C25 V8 Cubic Inches: 400
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1977-1978 GMC C25 V8 Cubic Inches: 305
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1975-1978 GMC C25 Suburban V8 Cubic Inches: 350
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1977-1978 GMC C25 Suburban V8 Cubic Inches: 305
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1978 GMC C25 Suburban V8 Cubic Inches: 400
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1975-1978 GMC C35 V8 Cubic Inches: 350
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1976-1978 GMC C35 V8 Cubic Inches: 400
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1978 GMC C35 V8 Cubic Inches: 305
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1970-1986 GMC Jimmy V8 Liters: 5.7
Cubic Inches: 350
  • without Smog Pump
  • Installation requires welding/modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1975-1979 GMC Jimmy V8 Cubic Inches: 400
  • Installation requires welding/modification to exhaust system.
  • Use big block flapper valve for smog legal applications.
  • Replacement spark plug wire and/or boot included.
1977-1986 GMC Jimmy V8 Liters: 5.0
Cubic Inches: 305
  • without Smog Pump
  • Installation requires welding/modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1975-1978 GMC K15 V8 Cubic Inches: 350, 400
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
  • Installation requires welding/modification to exhaust system.
  • Use big block flapper valve for smog legal applications.
  • Replacement spark plug wire and/or boot included.
1977-1978 GMC K15 V8 Cubic Inches: 305
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1975-1978 GMC K15 Suburban V8 Cubic Inches: 350, 400
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1977-1978 GMC K15 Suburban V8 Cubic Inches: 305
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1975-1978 GMC K25 V8 Cubic Inches: 350, 400
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1977-1978 GMC K25 V8 Cubic Inches: 305
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1975-1978 GMC K25 Suburban V8 Cubic Inches: 350, 400
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1977-1978 GMC K25 Suburban V8 Cubic Inches: 305
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1977-1978 GMC K35 V8 Cubic Inches: 350, 400
  • without Smog Pump
  • Installation requires welding/modification to exhaust system./modification to exhaust system.
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
1971-1979 GMC Sprint V8 Cubic Inches: 350
  • without Smog Pump
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
  • Use big block flapper valve for smog legal applications
  • Automatic transmission only.
  • For use with straight plug heads only.
1971-1973 GMC Sprint V8 Cubic Inches: 307
  • without Smog Pump
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
  • Automatic transmission only.
  • For use with straight plug heads only.
1971-1972 GMC Sprint V8 Cubic Inches: 400
  • without Smog Pump
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
  • Automatic transmission only.
  • For use with straight plug heads only.
1974-1976 GMC Sprint V8 Cubic Inches: 400
  • without Smog Pump
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
  • Automatic transmission only.
  • For use with straight plug heads only.
1976-1977 GMC Sprint V8 Cubic Inches: 305
  • without Smog Pump
  • Use big block flapper valve for smog legal applications
  • Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
  • Automatic transmission only.
  • For use with straight plug heads only.

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