Doug's Headers - D320-SS

Doug's Headers D320-SS 304 Stainless Long Tube Header 67-69 F Body/68-74 X Body 396-502 BBC 2" Primary 3 1/2" Collector

Doug's Headers D320-SS 304 Stainless Long Tube Header 67-69 F Body/68-74 X Body 396-502 BBC 2" Primary 3 1/2" Collector

Part Number: D320-SS / UPC 694342557089
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Features & Benefits

  • Natural stainless-steel finish offers superior resistance to rust and corrosion
  • 3/8" thick 304 stainless machine flanges to prevent warping
  • CNC 304 stainless mandrel bent tubes for an accurate fit and improved flow
  • Precision formed long transition collectors and long tube design reduce backpressure and increase higher RPM horsepower

Long tube headers provide the greatest increases in horsepower and torque across the entire RPM spectrum. The choice of racers worldwide, Doug's long tube headers are designed for the car owner who wants maximum power and the highest quality header on the market. This fitment is tailored for popular aftermarket engine swap kits. Doug's engine swap headers were developed to solve common fitment issues in tight spaces, making your swap process smoother. No more guesswork or modifications needed - just straightforward installations that save you time and frustration.


For the enthusiast who demands the best, Doug's Headers are not just components; they're a statement of excellence, a commitment to leading-edge performance, and a nod to the glory days of muscle cars and drag racing. Join the ranks of champions. Experience the unmatched quality and performance of Doug's Headers today.

Specifications

Finish 304 Stainless Steel
Material 304 Stainless Steel
Design Full-length
Primary Tubing Diameter 2.0 IN
Collector Port Diameter 3.5 IN
Port Shape SAP
Tube Wall Thickness 16 Gauge
Flange Thickness 0.375 IN
Collector Attachment 3-Bolt Flange
EGT Port No
Oxygen Sensor Port No
Gasket Or Seal Included Yes
Mounting Hardware Included Yes
Color Silver
Sheen Level Satin

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 - 98.99 $7.49 flat rate
UPS Ground $99+ 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.

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

All Doug's headers and exhaust products are guaranteed, to the original purchaser, to be free of defects in materials and workmanship for one year. This warranty covers the replacement or repair of the product only and does not cover the cost of removal and installation, customer applied aftermarket coatings or any other discoloration or corrosion of finished surfaces. Damage or product failure resulting from collision,improper installation, off-road use, road hazards, the use of exhaust insulting wrap or like products or rust occurring after installation, is not covered by the warranty. Should a part become defective it should be returned to the original selling retailer and must be accompanied with the original sales receipt. If there is no retailer in your area, call the factory for a return authorization and return your part prepaid to the factory for inspection. PerTronix reserves the right to replace or repair the alleged defective part and return the part freight collect.

Reviews

Doug's Headers - D320-SS

Doug's Headers D320-SS 304 Stainless Long Tube Header 67-69 F Body/68-74 X Body 396-502 BBC 2" Primary 3 1/2" Collector

Doug's Headers D320-SS 304 Stainless Long Tube Header 67-69 F Body/68-74 X Body 396-502 BBC 2" Primary 3 1/2" Collector

Part Number: D320-SS / UPC 694342557089
Regular price $1,079.95
Sale price $1,079.95 Regular price

Part Number: D320-SS / UPC 694342557089
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Need help? Call us at 909-599-5955

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

  • Natural stainless-steel finish offers superior resistance to rust and corrosion
  • 3/8" thick 304 stainless machine flanges to prevent warping
  • CNC 304 stainless mandrel bent tubes for an accurate fit and improved flow
  • Precision formed long transition collectors and long tube design reduce backpressure and increase higher RPM horsepower

Long tube headers provide the greatest increases in horsepower and torque across the entire RPM spectrum. The choice of racers worldwide, Doug's long tube headers are designed for the car owner who wants maximum power and the highest quality header on the market. This fitment is tailored for popular aftermarket engine swap kits. Doug's engine swap headers were developed to solve common fitment issues in tight spaces, making your swap process smoother. No more guesswork or modifications needed - just straightforward installations that save you time and frustration.


For the enthusiast who demands the best, Doug's Headers are not just components; they're a statement of excellence, a commitment to leading-edge performance, and a nod to the glory days of muscle cars and drag racing. Join the ranks of champions. Experience the unmatched quality and performance of Doug's Headers today.

Specifications

Finish 304 Stainless Steel
Material 304 Stainless Steel
Design Full-length
Primary Tubing Diameter 2.0 IN
Collector Port Diameter 3.5 IN
Port Shape SAP
Tube Wall Thickness 16 Gauge
Flange Thickness 0.375 IN
Collector Attachment 3-Bolt Flange
EGT Port No
Oxygen Sensor Port No
Gasket Or Seal Included Yes
Mounting Hardware Included Yes
Color Silver
Sheen Level Satin

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 - 98.99 $7.49 flat rate
UPS Ground $99+ 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.

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

All Doug's headers and exhaust products are guaranteed, to the original purchaser, to be free of defects in materials and workmanship for one year. This warranty covers the replacement or repair of the product only and does not cover the cost of removal and installation, customer applied aftermarket coatings or any other discoloration or corrosion of finished surfaces. Damage or product failure resulting from collision,improper installation, off-road use, road hazards, the use of exhaust insulting wrap or like products or rust occurring after installation, is not covered by the warranty. Should a part become defective it should be returned to the original selling retailer and must be accompanied with the original sales receipt. If there is no retailer in your area, call the factory for a return authorization and return your part prepaid to the factory for inspection. PerTronix reserves the right to replace or repair the alleged defective part and return the part freight collect.

Reviews

Applications

Year / Make / Model 1968 Chevrolet Chevy II
Engine Type V8
Engine Size(s) Cubic Inches: 396
Notes
  • Big block frame stands and motor mounts required for proper fit.
  • Will fit with Saginaw Close Ratio 800 Series Steering Box.

Year / Make / Model 1967-1969 Chevrolet Camaro
Engine Type V8
Engine Size(s) Cubic Inches: 396
Notes
  • Big block frame stands and motor mounts required for proper fit.
  • Will fit with Saginaw Close Ratio 800 Series Steering Box.

Year / Make / Model 1969 Chevrolet Camaro
Engine Type V8
Engine Size(s) Cubic Inches: 427
Notes
  • Big block frame stands and motor mounts required for proper fit.
  • Will fit with Saginaw Close Ratio 800 Series Steering Box.

Year / Make / Model 1969-1974 Chevrolet Nova
Engine Type V8
Notes
  • For use with 396-502 Big Block Chevrolet Engine Swap
  • Big block frame stands and motor mounts required for proper fit.
  • Will fit with Saginaw Close Ratio 800 Series Steering Box.

Year / Make / Model 1969-1970 Chevrolet Nova
Engine Type V8
Engine Size(s) Cubic Inches: 396
Notes
  • Big block frame stands and motor mounts required for proper fit.
  • Will fit with Saginaw Close Ratio 800 Series Steering Box.

Year / Make / Model 1970-1972 Chevrolet Nova
Engine Type V8
Engine Size(s) Cubic Inches: 402
Notes
  • Big block frame stands and motor mounts required for proper fit.
  • Will fit with Saginaw Close Ratio 800 Series Steering Box.

Year / Make / Model 1970-1971 Chevrolet Nova
Engine Type V8
Engine Size(s) Cubic Inches: 454
Notes
  • Big block frame stands and motor mounts required for proper fit.
  • Will fit with Saginaw Close Ratio 800 Series Steering Box.

Year / Make / Model 1967-1969 Pontiac Firebird
Engine Type V8
Notes
  • For use with 396-502 Big Block Chevrolet Engine Swap
  • Big block frame stands and motor mounts required for proper fit.
  • Will fit with Saginaw Close Ratio 800 Series Steering Box.

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