1973–91 GM Truck/SUV Small Block Chevy V8 1 5/8" Long Tube Header in Raw Steel

1973–91 GM Truck/SUV Small Block Chevy V8 1 5/8" Long Tube Header in Raw Steel

Part Number: H8048
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Highlights

Long Tube Headers are typically used for higher RPM horsepower, but can also increase the mid range torque in applications were there is room to fit a long tube design.

  • 1973–91 GM Truck/SUV Small Block Chevy V8 applications. See entire application list on the product page below.
  • 1 5/8" Primary Tubing Diameter
  • 3" Collector Port Diameter
  • Oval Port Shape
  • Raw Steel
  • Please note: Does not work with manual transmissions

Specifications

Finish Uncoated
Material Steel
Design Long Tube
Primary Tubing Diameter 1.625 Inches
Collector Port Diameter 3 Inches
Port Shape Oval
Tube Wall Thickness 18 Gauge
Collector Attachment 3-Bolt Flange
Oxygen Sensor Port No
Gasket Or Seal Included Yes
Mounting Hardware Included Yes
Grade Type Performance
Color Natural
Sheen Level Matte

Installation instructions

Instruction Manual
Installation Instructions
Download PDF
Applications Distributor Applications

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!

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

Reviews

1973–91 GM Truck/SUV Small Block Chevy V8 1 5/8" Long Tube Header in Raw Steel

1973–91 GM Truck/SUV Small Block Chevy V8 1 5/8" Long Tube Header in Raw Steel

Part Number: H8048
Regular price $372.55
Sale price $372.55 Regular price Save %

Sale Out of Stock
Part Number: H8048
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Need help? Call us at 909-599-5955

Emissions code

EMISSIONS CODE

What does this emissions code mean?

  • Free shipping on $99+ orders in lower 48 states
  • 90-day return policy
  • We’re here to help! Call us on 909-599-5955

HEADER FITMENT NOTE

Header applications are based on original engine and cylinder head port centerlines unless otherwise noted. Raised port cylinder heads will cause installation issues.

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Highlights

Long Tube Headers are typically used for higher RPM horsepower, but can also increase the mid range torque in applications were there is room to fit a long tube design.

  • 1973–91 GM Truck/SUV Small Block Chevy V8 applications. See entire application list on the product page below.
  • 1 5/8" Primary Tubing Diameter
  • 3" Collector Port Diameter
  • Oval Port Shape
  • Raw Steel
  • Please note: Does not work with manual transmissions

Specifications

Finish Uncoated
Material Steel
Design Long Tube
Primary Tubing Diameter 1.625 Inches
Collector Port Diameter 3 Inches
Port Shape Oval
Tube Wall Thickness 18 Gauge
Collector Attachment 3-Bolt Flange
Oxygen Sensor Port No
Gasket Or Seal Included Yes
Mounting Hardware Included Yes
Grade Type Performance
Color Natural
Sheen Level Matte

Installation instructions

Instruction Manual
Installation Instructions
Download PDF
Applications Distributor Applications

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!

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

Reviews

1973–91 GM Truck/SUV Small Block Chevy V8 1 5/8" Long Tube Header in Raw Steel
1973–91 GM Truck/SUV Small Block Chevy V8 1 5/8" Long Tube Header in Raw Steel
Regular price $372.55
Sale price $372.55 Regular price

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Applications

Year / Make / Model 1973-1974 Chevrolet C10 Pickup
Qualifier without Catalytic Converter
Qualifier without Smog Pump
Engine Type V8
Engine Size(s) Liters: 5.7
Cubic Inches: 350
Notes
  • Fits most angle plug heads
  • Fits D-Port cylinder heads including ZZ4 crate engines. Will Not fit GM Fast Burn head PN 19300955 or SP350, SP383 & ZZ6 engines
  • Reducers available with O2 sensor fitting see catalog listings
  • Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket.
  • Rear Wheel Drive Only

Year / Make / Model 1973 Chevrolet C10 Pickup
Qualifier without Catalytic Converter
Qualifier without Smog Pump
Engine Type V8
Engine Size(s) Cubic Inches: 307
Notes
  • Fits most angle plug heads
  • Fits D-Port cylinder heads including ZZ4 crate engines. Will Not fit GM Fast Burn head PN 19300955 or SP350, SP383 & ZZ6 engines
  • Reducers available with O2 sensor fitting see catalog listings
  • Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket.
  • Rear Wheel Drive Only

Year / Make / Model 1973-1974 Chevrolet C20 Pickup
Qualifier without Catalytic Converter
Qualifier without Smog Pump
Engine Type V8
Engine Size(s) Liters: 5.7
Cubic Inches: 350
Notes
  • Fits most angle plug heads
  • Fits D-Port cylinder heads including ZZ4 crate engines. Will Not fit GM Fast Burn head PN 19300955 or SP350, SP383 & ZZ6 engines
  • Reducers available with O2 sensor fitting see catalog listings
  • Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket.
  • Rear Wheel Drive Only

Year / Make / Model 1973-1974 Chevrolet C30 Pickup
Qualifier without Catalytic Converter
Qualifier without Smog Pump
Engine Type V8
Engine Size(s) Cubic Inches: 350
Notes
  • Fits most angle plug heads
  • Fits D-Port cylinder heads including ZZ4 crate engines. Will Not fit GM Fast Burn head PN 19300955 or SP350, SP383 & ZZ6 engines
  • Reducers available with O2 sensor fitting see catalog listings
  • Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket.
  • Rear Wheel Drive Only

Year / Make / Model 1973-1974 Chevrolet Blazer
Qualifier without Catalytic Converter
Qualifier without Smog Pump
Engine Type V8
Engine Size(s) Cubic Inches: 350
Notes
  • Fits most angle plug heads
  • Fits D-Port cylinder heads including ZZ4 crate engines. Will Not fit GM Fast Burn head PN 19300955 or SP350, SP383 & ZZ6 engines
  • Reducers available with O2 sensor fitting see catalog listings
  • Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket.
  • Rear Wheel Drive Only

Year / Make / Model 1973 Chevrolet Blazer
Qualifier without Catalytic Converter
Qualifier without Smog Pump
Engine Type V8
Engine Size(s) Cubic Inches: 307
Notes
  • Fits most angle plug heads
  • Fits D-Port cylinder heads including ZZ4 crate engines. Will Not fit GM Fast Burn head PN 19300955 or SP350, SP383 & ZZ6 engines
  • Reducers available with O2 sensor fitting see catalog listings
  • Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket.
  • Rear Wheel Drive Only

Year / Make / Model 1975-1986 Chevrolet C10
Qualifier without Catalytic Converter
Qualifier without Smog Pump
Engine Type V8
Engine Size(s) Liters: 5.7
Cubic Inches: 350
Notes
  • Fits most angle plug heads
  • Fits D-Port cylinder heads including ZZ4 crate engines. Will Not fit GM Fast Burn head PN 19300955 or SP350, SP383 & ZZ6 engines
  • Reducers available with O2 sensor fitting see catalog listings
  • Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket.
  • Rear Wheel Drive Only

Year / Make / Model 1976-1980 Chevrolet C10
Qualifier without Catalytic Converter
Qualifier without Smog Pump
Engine Type V8
Engine Size(s) Cubic Inches: 400
Notes
  • Fits most angle plug heads
  • Fits D-Port cylinder heads including ZZ4 crate engines. Will Not fit GM Fast Burn head PN 19300955 or SP350, SP383 & ZZ6 engines
  • Reducers available with O2 sensor fitting see catalog listings
  • Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket.
  • Rear Wheel Drive Only

Year / Make / Model 1977-1986 Chevrolet C10
Qualifier without Catalytic Converter
Qualifier without Smog Pump
Engine Type V8
Engine Size(s) Liters: 5
Cubic Inches: 305
Notes
  • Fits most angle plug heads
  • Fits D-Port cylinder heads including ZZ4 crate engines. Will Not fit GM Fast Burn head PN 19300955 or SP350, SP383 & ZZ6 engines
  • Reducers available with O2 sensor fitting see catalog listings
  • Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket.
  • Rear Wheel Drive Only

Year / Make / Model 1975-1986 Chevrolet C10 Suburban
Qualifier without Catalytic Converter
Qualifier without Smog Pump
Engine Type V8
Engine Size(s) Liters: 5.7
Cubic Inches: 350
Notes
  • Fits most angle plug heads
  • Fits D-Port cylinder heads including ZZ4 crate engines. Will Not fit GM Fast Burn head PN 19300955 or SP350, SP383 & ZZ6 engines
  • Reducers available with O2 sensor fitting see catalog listings
  • Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket.
  • Rear Wheel Drive Only

Year / Make / Model 1977-1979 Chevrolet C10 Suburban
Qualifier without Catalytic Converter
Qualifier without Smog Pump
Engine Type V8
Engine Size(s) Liters: 5
Cubic Inches: 305
Notes
  • Fits most angle plug heads
  • Fits D-Port cylinder heads including ZZ4 crate engines. Will Not fit GM Fast Burn head PN 19300955 or SP350, SP383 & ZZ6 engines
  • Reducers available with O2 sensor fitting see catalog listings
  • Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket.
  • Rear Wheel Drive Only

Year / Make / Model 1981-1986 Chevrolet C10 Suburban
Qualifier without Catalytic Converter
Qualifier without Smog Pump
Engine Type V8
Engine Size(s) Liters: 5
Cubic Inches: 305
Notes
  • Fits most angle plug heads
  • Fits D-Port cylinder heads including ZZ4 crate engines. Will Not fit GM Fast Burn head PN 19300955 or SP350, SP383 & ZZ6 engines
  • Reducers available with O2 sensor fitting see catalog listings
  • Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket.
  • Rear Wheel Drive Only

Year / Make / Model 1975-1987 Chevrolet C20
Qualifier without Catalytic Converter
Qualifier without Smog Pump
Engine Type V8
Engine Size(s) Cubic Inches: 350
Notes
  • Fits most angle plug heads
  • Fits D-Port cylinder heads including ZZ4 crate engines. Will Not fit GM Fast Burn head PN 19300955 or SP350, SP383 & ZZ6 engines
  • Reducers available with O2 sensor fitting see catalog listings
  • Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket.
  • Rear Wheel Drive Only

Year / Make / Model 1976-1980 Chevrolet C20
Qualifier without Catalytic Converter
Qualifier without Smog Pump
Engine Type V8
Engine Size(s) Cubic Inches: 400
Notes
  • Fits most angle plug heads
  • Fits D-Port cylinder heads including ZZ4 crate engines. Will Not fit GM Fast Burn head PN 19300955 or SP350, SP383 & ZZ6 engines
  • Reducers available with O2 sensor fitting see catalog listings
  • Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket.
  • Rear Wheel Drive Only

Year / Make / Model 1977-1978 Chevrolet C20
Qualifier without Catalytic Converter
Qualifier without Smog Pump
Engine Type V8
Engine Size(s) Liters: 5
Cubic Inches: 305
Notes
  • Fits most angle plug heads
  • Fits D-Port cylinder heads including ZZ4 crate engines. Will Not fit GM Fast Burn head PN 19300955 or SP350, SP383 & ZZ6 engines
  • Reducers available with O2 sensor fitting see catalog listings
  • Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket.
  • Rear Wheel Drive Only

Year / Make / Model 1981-1986 Chevrolet C20
Qualifier without Catalytic Converter
Qualifier without Smog Pump
Engine Type V8
Engine Size(s) Liters: 5
Cubic Inches: 305
Notes
  • Fits most angle plug heads
  • Fits D-Port cylinder heads including ZZ4 crate engines. Will Not fit GM Fast Burn head PN 19300955 or SP350, SP383 & ZZ6 engines
  • Reducers available with O2 sensor fitting see catalog listings
  • Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket.
  • Rear Wheel Drive Only

Year / Make / Model 1973-1986 Chevrolet C20 Suburban
Qualifier without Catalytic Converter
Qualifier without Smog Pump
Engine Type V8
Engine Size(s) Cubic Inches: 350
Notes
  • Fits most angle plug heads
  • Fits D-Port cylinder heads including ZZ4 crate engines. Will Not fit GM Fast Burn head PN 19300955 or SP350, SP383 & ZZ6 engines
  • Reducers available with O2 sensor fitting see catalog listings
  • Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket.
  • Rear Wheel Drive Only

Year / Make / Model 1976-1980 Chevrolet C20 Suburban
Qualifier without Catalytic Converter
Qualifier without Smog Pump
Engine Type V8
Engine Size(s) Cubic Inches: 400
Notes
  • Fits most angle plug heads
  • Fits D-Port cylinder heads including ZZ4 crate engines. Will Not fit GM Fast Burn head PN 19300955 or SP350, SP383 & ZZ6 engines
  • Reducers available with O2 sensor fitting see catalog listings
  • Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket.
  • Rear Wheel Drive Only

Year / Make / Model 1977-1979 Chevrolet C20 Suburban
Qualifier without Catalytic Converter
Qualifier without Smog Pump
Engine Type V8
Engine Size(s) Liters: 5
Cubic Inches: 305
Notes
  • Fits most angle plug heads
  • Fits D-Port cylinder heads including ZZ4 crate engines. Will Not fit GM Fast Burn head PN 19300955 or SP350, SP383 & ZZ6 engines
  • Reducers available with O2 sensor fitting see catalog listings
  • Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket.
  • Rear Wheel Drive Only

Year / Make / Model 1981-1986 Chevrolet C20 Suburban
Qualifier without Catalytic Converter
Qualifier without Smog Pump
Engine Type V8
Engine Size(s) Liters: 5
Cubic Inches: 305
Notes
  • Fits most angle plug heads
  • Fits D-Port cylinder heads including ZZ4 crate engines. Will Not fit GM Fast Burn head PN 19300955 or SP350, SP383 & ZZ6 engines
  • Reducers available with O2 sensor fitting see catalog listings
  • Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket.
  • Rear Wheel Drive Only

Year / Make / Model 1975-1986 Chevrolet C30
Qualifier without Catalytic Converter
Qualifier without Smog Pump
Engine Type V8
Engine Size(s) Liters: 5.7
Cubic Inches: 350
Notes
  • Fits most angle plug heads
  • Fits D-Port cylinder heads including ZZ4 crate engines. Will Not fit GM Fast Burn head PN 19300955 or SP350, SP383 & ZZ6 engines
  • Reducers available with O2 sensor fitting see catalog listings
  • Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket.
  • Rear Wheel Drive Only

Year / Make / Model 1976-1978 Chevrolet C30
Qualifier without Catalytic Converter
Qualifier without Smog Pump
Engine Type V8
Engine Size(s) Cubic Inches: 400
Notes
  • Fits most angle plug heads
  • Fits D-Port cylinder heads including ZZ4 crate engines. Will Not fit GM Fast Burn head PN 19300955 or SP350, SP383 & ZZ6 engines
  • Reducers available with O2 sensor fitting see catalog listings
  • Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket.
  • Rear Wheel Drive Only

Year / Make / Model 1978 Chevrolet C30
Qualifier without Catalytic Converter
Qualifier without Smog Pump
Engine Type V8
Engine Size(s) Liters: 5
Cubic Inches: 305
Notes
  • Fits most angle plug heads
  • Fits D-Port cylinder heads including ZZ4 crate engines. Will Not fit GM Fast Burn head PN 19300955 or SP350, SP383 & ZZ6 engines
  • Reducers available with O2 sensor fitting see catalog listings
  • Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket.
  • Rear Wheel Drive Only

Year / Make / Model 1987 Chevrolet R10
Qualifier without Catalytic Converter
Qualifier without Smog Pump
Engine Size(s) Liters: 5.7
Cubic Inches: 350
Notes
  • Fits most angle plug heads
  • Fits D-Port cylinder heads including ZZ4 crate engines. Will Not fit GM Fast Burn head PN 19300955 or SP350, SP383 & ZZ6 engines
  • Reducers available with O2 sensor fitting see catalog listings
  • Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket.
  • Rear Wheel Drive Only

Year / Make / Model 1987 Chevrolet R10
Qualifier without Catalytic Converter
Qualifier without Smog Pump
Engine Type V8
Engine Size(s) Liters: 5.7
Cubic Inches: 350
Notes
  • Fits most angle plug heads
  • Fits D-Port cylinder heads including ZZ4 crate engines. Will Not fit GM Fast Burn head PN 19300955 or SP350, SP383 & ZZ6 engines
  • Reducers available with O2 sensor fitting see catalog listings
  • Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket.
  • Rear Wheel Drive Only

Year / Make / Model 1987-1988 Chevrolet R10 Suburban
Qualifier without Catalytic Converter
Qualifier without Smog Pump
Engine Type V8
Engine Size(s) Liters: 5.7
Cubic Inches: 350
Notes
  • Fits most angle plug heads
  • Fits D-Port cylinder heads including ZZ4 crate engines. Will Not fit GM Fast Burn head PN 19300955 or SP350, SP383 & ZZ6 engines
  • Reducers available with O2 sensor fitting see catalog listings
  • Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket.
  • Rear Wheel Drive Only

Year / Make / Model 1987 Chevrolet R10 Suburban
Qualifier without Catalytic Converter
Qualifier without Smog Pump
Engine Type V8
Engine Size(s) Liters: 5
Cubic Inches: 305
Notes
  • Fits most angle plug heads
  • Fits D-Port cylinder heads including ZZ4 crate engines. Will Not fit GM Fast Burn head PN 19300955 or SP350, SP383 & ZZ6 engines
  • Reducers available with O2 sensor fitting see catalog listings
  • Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket.
  • Rear Wheel Drive Only

Year / Make / Model 1989-1991 Chevrolet R1500 Suburban
Qualifier without Catalytic Converter
Qualifier without Smog Pump
Engine Type V8
Engine Size(s) Liters: 5.7
Cubic Inches: 350
Notes
  • Fits most angle plug heads
  • Fits D-Port cylinder heads including ZZ4 crate engines. Will Not fit GM Fast Burn head PN 19300955 or SP350, SP383 & ZZ6 engines
  • Reducers available with O2 sensor fitting see catalog listings
  • Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket.
  • Rear Wheel Drive Only

Year / Make / Model 1987-1988 Chevrolet R20 Crew Cab Pickup
Qualifier without Catalytic Converter
Qualifier without Smog Pump
Engine Type V8
Engine Size(s) Cubic Inches: 350
Notes
  • Fits most angle plug heads
  • Fits D-Port cylinder heads including ZZ4 crate engines. Will Not fit GM Fast Burn head PN 19300955 or SP350, SP383 & ZZ6 engines
  • Reducers available with O2 sensor fitting see catalog listings
  • Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket.
  • Rear Wheel Drive Only

Year / Make / Model 1987 Chevrolet R20 Standard Cab Pickup
Qualifier without Catalytic Converter
Qualifier without Smog Pump
Engine Type V8
Engine Size(s) Cubic Inches: 305, 350
Notes
  • Fits most angle plug heads
  • Fits D-Port cylinder heads including ZZ4 crate engines. Will Not fit GM Fast Burn head PN 19300955 or SP350, SP383 & ZZ6 engines
  • Reducers available with O2 sensor fitting see catalog listings
  • Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket.
  • Rear Wheel Drive Only

Year / Make / Model 1987 Chevrolet R20 Crew Cab Pickup
Qualifier without Catalytic Converter
Qualifier without Smog Pump
Engine Type V8
Engine Size(s) Cubic Inches: 305
Notes
  • Fits most angle plug heads
  • Fits D-Port cylinder heads including ZZ4 crate engines. Will Not fit GM Fast Burn head PN 19300955 or SP350, SP383 & ZZ6 engines
  • Reducers available with O2 sensor fitting see catalog listings
  • Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket.
  • Rear Wheel Drive Only

Year / Make / Model 1989 Chevrolet R2500
Qualifier without Catalytic Converter
Qualifier without Smog Pump
Engine Type V8
Engine Size(s) Liters: 5.7
Cubic Inches: 350
Notes
  • Fits most angle plug heads
  • Fits D-Port cylinder heads including ZZ4 crate engines. Will Not fit GM Fast Burn head PN 19300955 or SP350, SP383 & ZZ6 engines
  • Reducers available with O2 sensor fitting see catalog listings
  • Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket.
  • Rear Wheel Drive Only

Year / Make / Model 1987-1988 Chevrolet R30 Crew Cab Pickup
Qualifier without Catalytic Converter
Qualifier without Smog Pump
Engine Type V8
Engine Size(s) Cubic Inches: 350
Notes
  • Fits most angle plug heads
  • Fits D-Port cylinder heads including ZZ4 crate engines. Will Not fit GM Fast Burn head PN 19300955 or SP350, SP383 & ZZ6 engines
  • Reducers available with O2 sensor fitting see catalog listings
  • Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket.
  • Rear Wheel Drive Only

Year / Make / Model 1987 Chevrolet R30 Standard Cab Pickup
Qualifier without Catalytic Converter
Qualifier without Smog Pump
Engine Type V8
Engine Size(s) Cubic Inches: 350
Notes
  • Fits most angle plug heads
  • Fits D-Port cylinder heads including ZZ4 crate engines. Will Not fit GM Fast Burn head PN 19300955 or SP350, SP383 & ZZ6 engines
  • Reducers available with O2 sensor fitting see catalog listings
  • Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket.
  • Rear Wheel Drive Only

Year / Make / Model 1973-1974 GMC C15/C1500 Pickup
Qualifier without Catalytic Converter
Qualifier without Smog Pump
Engine Type V8
Engine Size(s) Cubic Inches: 350
Notes
  • Fits most angle plug heads
  • Fits D-Port cylinder heads including ZZ4 crate engines. Will Not fit GM Fast Burn head PN 19300955 or SP350, SP383 & ZZ6 engines
  • Reducers available with O2 sensor fitting see catalog listings
  • Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket.
  • Rear Wheel Drive Only

Year / Make / Model 1973 GMC C15/C1500 Pickup
Qualifier without Catalytic Converter
Qualifier without Smog Pump
Engine Type V8
Engine Size(s) Cubic Inches: 307
Notes
  • Fits most angle plug heads
  • Fits D-Port cylinder heads including ZZ4 crate engines. Will Not fit GM Fast Burn head PN 19300955 or SP350, SP383 & ZZ6 engines
  • Reducers available with O2 sensor fitting see catalog listings
  • Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket.
  • Rear Wheel Drive Only

Year / Make / Model 1973-1974 GMC C15/C1500 Suburban
Qualifier without Catalytic Converter
Qualifier without Smog Pump
Engine Type V8
Engine Size(s) Cubic Inches: 350
Notes
  • Fits most angle plug heads
  • Fits D-Port cylinder heads including ZZ4 crate engines. Will Not fit GM Fast Burn head PN 19300955 or SP350, SP383 & ZZ6 engines
  • Reducers available with O2 sensor fitting see catalog listings
  • Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket.
  • Rear Wheel Drive Only

Year / Make / Model 1973 GMC C15/C1500 Suburban
Qualifier without Catalytic Converter
Qualifier without Smog Pump
Engine Type V8
Engine Size(s) Cubic Inches: 307
Notes
  • Fits most angle plug heads
  • Fits D-Port cylinder heads including ZZ4 crate engines. Will Not fit GM Fast Burn head PN 19300955 or SP350, SP383 & ZZ6 engines
  • Reducers available with O2 sensor fitting see catalog listings
  • Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket.
  • Rear Wheel Drive Only

Year / Make / Model 1973-1974 GMC C25/C2500 Pickup
Qualifier without Catalytic Converter
Qualifier without Smog Pump
Engine Type V8
Engine Size(s) Cubic Inches: 350
Notes
  • Fits most angle plug heads
  • Fits D-Port cylinder heads including ZZ4 crate engines. Will Not fit GM Fast Burn head PN 19300955 or SP350, SP383 & ZZ6 engines
  • Reducers available with O2 sensor fitting see catalog listings
  • Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket.
  • Rear Wheel Drive Only

Year / Make / Model 1973 GMC C25/C2500 Pickup
Qualifier without Catalytic Converter
Qualifier without Smog Pump
Engine Type V8
Engine Size(s) Cubic Inches: 307
Notes
  • Fits most angle plug heads
  • Fits D-Port cylinder heads including ZZ4 crate engines. Will Not fit GM Fast Burn head PN 19300955 or SP350, SP383 & ZZ6 engines
  • Reducers available with O2 sensor fitting see catalog listings
  • Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket.
  • Rear Wheel Drive Only

Year / Make / Model 1973-1974 GMC C25/C2500 Suburban
Qualifier without Catalytic Converter
Qualifier without Smog Pump
Engine Type V8
Engine Size(s) Cubic Inches: 350
Notes
  • Fits most angle plug heads
  • Fits D-Port cylinder heads including ZZ4 crate engines. Will Not fit GM Fast Burn head PN 19300955 or SP350, SP383 & ZZ6 engines
  • Reducers available with O2 sensor fitting see catalog listings
  • Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket.
  • Rear Wheel Drive Only

Year / Make / Model 1973 GMC C25/C2500 Suburban
Qualifier without Catalytic Converter
Qualifier without Smog Pump
Engine Type V8
Engine Size(s) Cubic Inches: 307
Notes
  • Fits most angle plug heads
  • Fits D-Port cylinder heads including ZZ4 crate engines. Will Not fit GM Fast Burn head PN 19300955 or SP350, SP383 & ZZ6 engines
  • Reducers available with O2 sensor fitting see catalog listings
  • Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket.
  • Rear Wheel Drive Only

Year / Make / Model 1973-1974 GMC C35/C3500 Pickup
Qualifier without Catalytic Converter
Qualifier without Smog Pump
Engine Type V8
Engine Size(s) Cubic Inches: 350
Notes
  • Fits most angle plug heads
  • Fits D-Port cylinder heads including ZZ4 crate engines. Will Not fit GM Fast Burn head PN 19300955 or SP350, SP383 & ZZ6 engines
  • Reducers available with O2 sensor fitting see catalog listings
  • Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket.
  • Rear Wheel Drive Only

Year / Make / Model 1973 GMC C35/C3500 Pickup
Qualifier without Catalytic Converter
Qualifier without Smog Pump
Engine Type V8
Engine Size(s) Cubic Inches: 307
Notes
  • Fits most angle plug heads
  • Fits D-Port cylinder heads including ZZ4 crate engines. Will Not fit GM Fast Burn head PN 19300955 or SP350, SP383 & ZZ6 engines
  • Reducers available with O2 sensor fitting see catalog listings
  • Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket.
  • Rear Wheel Drive Only

Year / Make / Model 1979-1986 GMC C1500
Qualifier without Catalytic Converter
Qualifier without Smog Pump
Engine Type V8
Engine Size(s) Liters: 5
Cubic Inches: 305, 350
Notes
  • Fits most angle plug heads
  • Fits D-Port cylinder heads including ZZ4 crate engines. Will Not fit GM Fast Burn head PN 19300955 or SP350, SP383 & ZZ6 engines
  • Reducers available with O2 sensor fitting see catalog listings
  • Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket.
  • Rear Wheel Drive Only

Year / Make / Model 1979-1980 GMC C1500
Qualifier without Catalytic Converter
Qualifier without Smog Pump
Engine Type V8
Engine Size(s) Cubic Inches: 400
Notes
  • Fits most angle plug heads
  • Fits D-Port cylinder heads including ZZ4 crate engines. Will Not fit GM Fast Burn head PN 19300955 or SP350, SP383 & ZZ6 engines
  • Reducers available with O2 sensor fitting see catalog listings
  • Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket.
  • Rear Wheel Drive Only

Year / Make / Model 1979-1986 GMC C1500 Suburban
Qualifier without Catalytic Converter
Qualifier without Smog Pump
Engine Type V8
Engine Size(s) Liters: 5.7
Cubic Inches: 350
Notes
  • Fits most angle plug heads
  • Fits D-Port cylinder heads including ZZ4 crate engines. Will Not fit GM Fast Burn head PN 19300955 or SP350, SP383 & ZZ6 engines
  • Reducers available with O2 sensor fitting see catalog listings
  • Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket.
  • Rear Wheel Drive Only

Year / Make / Model 1979 GMC C1500 Suburban
Qualifier without Catalytic Converter
Qualifier without Smog Pump
Engine Type V8
Engine Size(s) Cubic Inches: 305
Notes
  • Fits most angle plug heads
  • Fits D-Port cylinder heads including ZZ4 crate engines. Will Not fit GM Fast Burn head PN 19300955 or SP350, SP383 & ZZ6 engines
  • Reducers available with O2 sensor fitting see catalog listings
  • Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket.
  • Rear Wheel Drive Only

Year / Make / Model 1981-1986 GMC C1500 Suburban
Qualifier without Catalytic Converter
Qualifier without Smog Pump
Engine Type V8
Engine Size(s) Cubic Inches: 305
Notes
  • Fits most angle plug heads
  • Fits D-Port cylinder heads including ZZ4 crate engines. Will Not fit GM Fast Burn head PN 19300955 or SP350, SP383 & ZZ6 engines
  • Reducers available with O2 sensor fitting see catalog listings
  • Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket.
  • Rear Wheel Drive Only

Year / Make / Model 1979-1986 GMC C2500
Qualifier without Catalytic Converter
Qualifier without Smog Pump
Engine Type V8
Engine Size(s) Cubic Inches: 350
Notes
  • Fits most angle plug heads
  • Fits D-Port cylinder heads including ZZ4 crate engines. Will Not fit GM Fast Burn head PN 19300955 or SP350, SP383 & ZZ6 engines
  • Reducers available with O2 sensor fitting see catalog listings
  • Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket.
  • Rear Wheel Drive Only

Year / Make / Model 1979 GMC C2500
Qualifier without Catalytic Converter
Qualifier without Smog Pump
Engine Type V8
Engine Size(s) Cubic Inches: 400
Notes
  • Fits most angle plug heads
  • Fits D-Port cylinder heads including ZZ4 crate engines. Will Not fit GM Fast Burn head PN 19300955 or SP350, SP383 & ZZ6 engines
  • Reducers available with O2 sensor fitting see catalog listings
  • Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket.
  • Rear Wheel Drive Only

Year / Make / Model 1980-1986 GMC C2500
Qualifier without Catalytic Converter
Qualifier without Smog Pump
Engine Type V8
Engine Size(s) Cubic Inches: 305
Notes
  • Fits most angle plug heads
  • Fits D-Port cylinder heads including ZZ4 crate engines. Will Not fit GM Fast Burn head PN 19300955 or SP350, SP383 & ZZ6 engines
  • Reducers available with O2 sensor fitting see catalog listings
  • Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket.
  • Rear Wheel Drive Only

Year / Make / Model 1979-1986 GMC C2500 Suburban
Qualifier without Catalytic Converter
Qualifier without Smog Pump
Engine Type V8
Engine Size(s) Liters: 5.7
Cubic Inches: 350
Notes
  • Fits most angle plug heads
  • Fits D-Port cylinder heads including ZZ4 crate engines. Will Not fit GM Fast Burn head PN 19300955 or SP350, SP383 & ZZ6 engines
  • Reducers available with O2 sensor fitting see catalog listings
  • Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket.
  • Rear Wheel Drive Only

Year / Make / Model 1980 GMC C2500 Suburban
Qualifier without Catalytic Converter
Qualifier without Smog Pump
Engine Type V8
Engine Size(s) Cubic Inches: 400
Notes
  • Fits most angle plug heads
  • Fits D-Port cylinder heads including ZZ4 crate engines. Will Not fit GM Fast Burn head PN 19300955 or SP350, SP383 & ZZ6 engines
  • Reducers available with O2 sensor fitting see catalog listings
  • Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket.
  • Rear Wheel Drive Only

Year / Make / Model 1982-1986 GMC C2500 Suburban
Qualifier without Catalytic Converter
Qualifier without Smog Pump
Engine Type V8
Engine Size(s) Liters: 5
Cubic Inches: 305
Notes
  • Fits most angle plug heads
  • Fits D-Port cylinder heads including ZZ4 crate engines. Will Not fit GM Fast Burn head PN 19300955 or SP350, SP383 & ZZ6 engines
  • Reducers available with O2 sensor fitting see catalog listings
  • Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket.
  • Rear Wheel Drive Only

Year / Make / Model 1979-1986 GMC C3500
Qualifier without Catalytic Converter
Qualifier without Smog Pump
Engine Type V8
Engine Size(s) Cubic Inches: 350
Notes
  • Fits most angle plug heads
  • Fits D-Port cylinder heads including ZZ4 crate engines. Will Not fit GM Fast Burn head PN 19300955 or SP350, SP383 & ZZ6 engines
  • Reducers available with O2 sensor fitting see catalog listings
  • Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket.
  • Rear Wheel Drive Only

Year / Make / Model 1979 GMC C3500
Qualifier without Catalytic Converter
Qualifier without Smog Pump
Engine Type V8
Engine Size(s) Cubic Inches: 400
Notes
  • Fits most angle plug heads
  • Fits D-Port cylinder heads including ZZ4 crate engines. Will Not fit GM Fast Burn head PN 19300955 or SP350, SP383 & ZZ6 engines
  • Reducers available with O2 sensor fitting see catalog listings
  • Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket.
  • Rear Wheel Drive Only

Year / Make / Model 1986 GMC C3500
Qualifier without Catalytic Converter
Qualifier without Smog Pump
Engine Type V8
Engine Size(s) Cubic Inches: 305
Notes
  • Fits most angle plug heads
  • Fits D-Port cylinder heads including ZZ4 crate engines. Will Not fit GM Fast Burn head PN 19300955 or SP350, SP383 & ZZ6 engines
  • Reducers available with O2 sensor fitting see catalog listings
  • Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket.
  • Rear Wheel Drive Only

Year / Make / Model 1987-1991 GMC R1500 Suburban
Qualifier without Catalytic Converter
Qualifier without Smog Pump
Engine Type V8
Engine Size(s) Liters: 5.7
Cubic Inches: 350
Notes
  • Fits most angle plug heads
  • Fits D-Port cylinder heads including ZZ4 crate engines. Will Not fit GM Fast Burn head PN 19300955 or SP350, SP383 & ZZ6 engines
  • Reducers available with O2 sensor fitting see catalog listings
  • Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket.
  • Rear Wheel Drive Only

Year / Make / Model 1987-1989 GMC R2500 Crew Cab Pickup
Qualifier without Catalytic Converter
Qualifier without Smog Pump
Engine Type V8
Engine Size(s) Cubic Inches: 350
Notes
  • Fits most angle plug heads
  • Fits D-Port cylinder heads including ZZ4 crate engines. Will Not fit GM Fast Burn head PN 19300955 or SP350, SP383 & ZZ6 engines
  • Reducers available with O2 sensor fitting see catalog listings
  • Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket.
  • Rear Wheel Drive Only

Year / Make / Model 1987 GMC R2500 Standard Cab Pickup
Qualifier without Catalytic Converter
Qualifier without Smog Pump
Engine Type V8
Engine Size(s) Cubic Inches: 305, 350
Notes
  • Fits most angle plug heads
  • Fits D-Port cylinder heads including ZZ4 crate engines. Will Not fit GM Fast Burn head PN 19300955 or SP350, SP383 & ZZ6 engines
  • Reducers available with O2 sensor fitting see catalog listings
  • Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket.
  • Rear Wheel Drive Only

Year / Make / Model 1987-1991 GMC R2500 Suburban
Qualifier without Catalytic Converter
Qualifier without Smog Pump
Engine Type V8
Engine Size(s) Liters: 5.7
Cubic Inches: 350
Notes
  • Fits most angle plug heads
  • Fits D-Port cylinder heads including ZZ4 crate engines. Will Not fit GM Fast Burn head PN 19300955 or SP350, SP383 & ZZ6 engines
  • Reducers available with O2 sensor fitting see catalog listings
  • Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket.
  • Rear Wheel Drive Only

Year / Make / Model 1987-1991 GMC R3500 Crew Cab Pickup
Qualifier without Catalytic Converter
Qualifier without Smog Pump
Engine Type V8
Engine Size(s) Cubic Inches: 350
Notes
  • Fits most angle plug heads
  • Fits D-Port cylinder heads including ZZ4 crate engines. Will Not fit GM Fast Burn head PN 19300955 or SP350, SP383 & ZZ6 engines
  • Reducers available with O2 sensor fitting see catalog listings
  • Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket.
  • Rear Wheel Drive Only

Year / Make / Model 1987 GMC R3500 Standard Cab Pickup
Qualifier without Catalytic Converter
Qualifier without Smog Pump
Engine Type V8
Engine Size(s) Cubic Inches: 350
Notes
  • Fits most angle plug heads
  • Fits D-Port cylinder heads including ZZ4 crate engines. Will Not fit GM Fast Burn head PN 19300955 or SP350, SP383 & ZZ6 engines
  • Reducers available with O2 sensor fitting see catalog listings
  • Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket.
  • Rear Wheel Drive Only

Year / Make / Model 1975-1978 GMC C15
Qualifier without Catalytic Converter
Qualifier without Smog Pump
Engine Type V8
Engine Size(s) Liters: 5.7
Cubic Inches: 350
Notes
  • Fits most angle plug heads
  • Fits D-Port cylinder heads including ZZ4 crate engines. Will Not fit GM Fast Burn head PN 19300955 or SP350, SP383 & ZZ6 engines
  • Reducers available with O2 sensor fitting see catalog listings
  • Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket.
  • Rear Wheel Drive Only

Year / Make / Model 1976 GMC C15
Qualifier without Catalytic Converter
Qualifier without Smog Pump
Engine Type V8
Engine Size(s) Cubic Inches: 400
Notes
  • Fits most angle plug heads
  • Fits D-Port cylinder heads including ZZ4 crate engines. Will Not fit GM Fast Burn head PN 19300955 or SP350, SP383 & ZZ6 engines
  • Reducers available with O2 sensor fitting see catalog listings
  • Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket.
  • Rear Wheel Drive Only

Year / Make / Model 1978 GMC C15
Qualifier without Catalytic Converter
Qualifier without Smog Pump
Engine Type V8
Engine Size(s) Cubic Inches: 400
Notes
  • Fits most angle plug heads
  • Fits D-Port cylinder heads including ZZ4 crate engines. Will Not fit GM Fast Burn head PN 19300955 or SP350, SP383 & ZZ6 engines
  • Reducers available with O2 sensor fitting see catalog listings
  • Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket.
  • Rear Wheel Drive Only

Year / Make / Model 1977-1978 GMC C15
Qualifier without Catalytic Converter
Qualifier without Smog Pump
Engine Type V8
Engine Size(s) Liters: 5
Cubic Inches: 305
Notes
  • Fits most angle plug heads
  • Fits D-Port cylinder heads including ZZ4 crate engines. Will Not fit GM Fast Burn head PN 19300955 or SP350, SP383 & ZZ6 engines
  • Reducers available with O2 sensor fitting see catalog listings
  • Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket.
  • Rear Wheel Drive Only

Year / Make / Model 1975-1978 GMC C15 Suburban
Qualifier without Catalytic Converter
Qualifier without Smog Pump
Engine Type V8
Engine Size(s) Liters: 5.7
Cubic Inches: 350
Notes
  • Fits most angle plug heads
  • Fits D-Port cylinder heads including ZZ4 crate engines. Will Not fit GM Fast Burn head PN 19300955 or SP350, SP383 & ZZ6 engines
  • Reducers available with O2 sensor fitting see catalog listings
  • Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket.
  • Rear Wheel Drive Only

Year / Make / Model 1977-1978 GMC C15 Suburban
Qualifier without Catalytic Converter
Qualifier without Smog Pump
Engine Type V8
Engine Size(s) Liters: 5
Cubic Inches: 305
Notes
  • Fits most angle plug heads
  • Fits D-Port cylinder heads including ZZ4 crate engines. Will Not fit GM Fast Burn head PN 19300955 or SP350, SP383 & ZZ6 engines
  • Reducers available with O2 sensor fitting see catalog listings
  • Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket.
  • Rear Wheel Drive Only

Year / Make / Model 1975-1978 GMC C25
Qualifier without Catalytic Converter
Qualifier without Smog Pump
Engine Type V8
Engine Size(s) Liters: 5.7
Cubic Inches: 350
Notes
  • Fits most angle plug heads
  • Fits D-Port cylinder heads including ZZ4 crate engines. Will Not fit GM Fast Burn head PN 19300955 or SP350, SP383 & ZZ6 engines
  • Reducers available with O2 sensor fitting see catalog listings
  • Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket.
  • Rear Wheel Drive Only

Year / Make / Model 1976-1978 GMC C25
Qualifier without Catalytic Converter
Qualifier without Smog Pump
Engine Type V8
Engine Size(s) Cubic Inches: 400
Notes
  • Fits most angle plug heads
  • Fits D-Port cylinder heads including ZZ4 crate engines. Will Not fit GM Fast Burn head PN 19300955 or SP350, SP383 & ZZ6 engines
  • Reducers available with O2 sensor fitting see catalog listings
  • Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket.
  • Rear Wheel Drive Only

Year / Make / Model 1977-1978 GMC C25
Qualifier without Catalytic Converter
Qualifier without Smog Pump
Engine Type V8
Engine Size(s) Liters: 5
Cubic Inches: 305
Notes
  • Fits most angle plug heads
  • Fits D-Port cylinder heads including ZZ4 crate engines. Will Not fit GM Fast Burn head PN 19300955 or SP350, SP383 & ZZ6 engines
  • Reducers available with O2 sensor fitting see catalog listings
  • Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket.
  • Rear Wheel Drive Only

Year / Make / Model 1975-1978 GMC C25 Suburban
Qualifier without Catalytic Converter
Qualifier without Smog Pump
Engine Type V8
Engine Size(s) Cubic Inches: 350
Notes
  • Fits most angle plug heads
  • Fits D-Port cylinder heads including ZZ4 crate engines. Will Not fit GM Fast Burn head PN 19300955 or SP350, SP383 & ZZ6 engines
  • Reducers available with O2 sensor fitting see catalog listings
  • Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket.
  • Rear Wheel Drive Only

Year / Make / Model 1977-1978 GMC C25 Suburban
Qualifier without Catalytic Converter
Qualifier without Smog Pump
Engine Type V8
Engine Size(s) Liters: 5
Cubic Inches: 305
Notes
  • Fits most angle plug heads
  • Fits D-Port cylinder heads including ZZ4 crate engines. Will Not fit GM Fast Burn head PN 19300955 or SP350, SP383 & ZZ6 engines
  • Reducers available with O2 sensor fitting see catalog listings
  • Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket.
  • Rear Wheel Drive Only

Year / Make / Model 1975-1978 GMC C35
Qualifier without Catalytic Converter
Qualifier without Smog Pump
Engine Type V8
Engine Size(s) Liters: 5.7
Cubic Inches: 350
Notes
  • Fits most angle plug heads
  • Fits D-Port cylinder heads including ZZ4 crate engines. Will Not fit GM Fast Burn head PN 19300955 or SP350, SP383 & ZZ6 engines
  • Reducers available with O2 sensor fitting see catalog listings
  • Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket.
  • Rear Wheel Drive Only

Year / Make / Model 1976-1978 GMC C35
Qualifier without Catalytic Converter
Qualifier without Smog Pump
Engine Type V8
Engine Size(s) Cubic Inches: 400
Notes
  • Fits most angle plug heads
  • Fits D-Port cylinder heads including ZZ4 crate engines. Will Not fit GM Fast Burn head PN 19300955 or SP350, SP383 & ZZ6 engines
  • Reducers available with O2 sensor fitting see catalog listings
  • Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket.
  • Rear Wheel Drive Only

Year / Make / Model 1973-1984 GMC Jimmy
Qualifier without Catalytic Converter
Qualifier without Smog Pump
Engine Type V8
Engine Size(s) Cubic Inches: 350
Notes
  • Fits most angle plug heads
  • Fits D-Port cylinder heads including ZZ4 crate engines. Will Not fit GM Fast Burn head PN 19300955 or SP350, SP383 & ZZ6 engines
  • Reducers available with O2 sensor fitting see catalog listings
  • Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket.
  • Rear Wheel Drive Only

Year / Make / Model 1975-1979 GMC Jimmy
Qualifier without Catalytic Converter
Qualifier without Smog Pump
Engine Type V8
Engine Size(s) Cubic Inches: 400
Notes
  • Fits most angle plug heads
  • Fits D-Port cylinder heads including ZZ4 crate engines. Will Not fit GM Fast Burn head PN 19300955 or SP350, SP383 & ZZ6 engines
  • Reducers available with O2 sensor fitting see catalog listings
  • Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket.
  • Rear Wheel Drive Only

Year / Make / Model 1977-1984 GMC Jimmy
Qualifier without Catalytic Converter
Qualifier without Smog Pump
Engine Type V8
Engine Size(s) Cubic Inches: 305
Notes
  • Fits most angle plug heads
  • Fits D-Port cylinder heads including ZZ4 crate engines. Will Not fit GM Fast Burn head PN 19300955 or SP350, SP383 & ZZ6 engines
  • Reducers available with O2 sensor fitting see catalog listings
  • Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket.
  • Rear Wheel Drive Only

Year / Make / Model 1987 GMC R1500
Qualifier without Catalytic Converter
Qualifier without Smog Pump
Engine Type V8
Engine Size(s) Cubic Inches: 305
Notes
  • Fits most angle plug heads
  • Fits D-Port cylinder heads including ZZ4 crate engines. Will Not fit GM Fast Burn head PN 19300955 or SP350, SP383 & ZZ6 engines
  • Reducers available with O2 sensor fitting see catalog listings
  • Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket.
  • Rear Wheel Drive Only

Year / Make / Model 1987 GMC R1500 Standard Cab Pickup
Qualifier without Catalytic Converter
Qualifier without Smog Pump
Engine Type V8
Engine Size(s) Cubic Inches: 350
Notes
  • Fits most angle plug heads
  • Fits D-Port cylinder heads including ZZ4 crate engines. Will Not fit GM Fast Burn head PN 19300955 or SP350, SP383 & ZZ6 engines
  • Reducers available with O2 sensor fitting see catalog listings
  • Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket.
  • Rear Wheel Drive Only

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