Doug's Headers - D324-B

Doug's Headers D324-B 1 3/4" 4-Tube Full Length Header Camaro Small Block Chevrolet 70-81 Hi-Temp Black Coating

Doug's Headers D324-B 1 3/4" 4-Tube Full Length Header Camaro Small Block Chevrolet 70-81 Hi-Temp Black Coating

Part Number: D324-B / UPC 694342543938
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Features & Benefits

  • 3/8" Thick machined flanges to prevent warping
  • Precision formed long transition collectors and long tube design reduces backpressure and increases higher RPM horsepower
  • Heavy duty 16-gauge tubing for long life
  • Tubes are pre-polished to removed scratches before applying metallic ceramic or hi-temp black coating

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 Hi-Temp Black Coating
Material Steel
Design Full-length
Primary Tubing Diameter 1.75 IN
Collector Port Diameter 3.0 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 Black
Sheen Level Matte

Installation instructions

Instruction Manual
Installation Instructions

Download PDF

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 - D324-B

Doug's Headers D324-B 1 3/4" 4-Tube Full Length Header Camaro Small Block Chevrolet 70-81 Hi-Temp Black Coating

Doug's Headers D324-B 1 3/4" 4-Tube Full Length Header Camaro Small Block Chevrolet 70-81 Hi-Temp Black Coating

Part Number: D324-B / UPC 694342543938
Regular price $692.45
Sale price $692.45 Regular price

Part Number: D324-B / UPC 694342543938
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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

  • 3/8" Thick machined flanges to prevent warping
  • Precision formed long transition collectors and long tube design reduces backpressure and increases higher RPM horsepower
  • Heavy duty 16-gauge tubing for long life
  • Tubes are pre-polished to removed scratches before applying metallic ceramic or hi-temp black coating

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 Hi-Temp Black Coating
Material Steel
Design Full-length
Primary Tubing Diameter 1.75 IN
Collector Port Diameter 3.0 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 Black
Sheen Level Matte

Installation instructions

Instruction Manual
Installation Instructions

Download PDF

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 1970-1973 Chevrolet Camaro
Engine Type V8
Engine Size(s) Cubic Inches: 307
Notes
  • Fits most angle plug heads.
  • 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.
  • Will not work with Column Shift manual trans.

Year / Make / Model 1975-1981 Chevrolet Camaro
Engine Type V8
Engine Size(s) Cubic Inches: 350
Notes
  • Fits most angle plug heads.
  • 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.
  • Will not work with Column Shift manual trans.

Year / Make / Model 1976-1981 Chevrolet Camaro
Engine Type V8
Engine Size(s) Cubic Inches: 305
Notes
  • Fits most angle plug heads.
  • 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.
  • Will not work with Column Shift manual trans.

Year / Make / Model 1980-1981 Chevrolet Camaro
Engine Type V8
Engine Size(s) Cubic Inches: 267
Notes
  • Fits most angle plug heads.
  • 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.
  • Will not work with Column Shift manual trans.

Year / Make / Model 1975-1979 Chevrolet Nova
Engine Type V8
Engine Size(s) Cubic Inches: 350
Notes
  • Fits most angle plug heads.
  • 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.
  • Will not work with Column Shift manual trans.

Year / Make / Model 1976-1979 Chevrolet Nova
Engine Type V8
Engine Size(s) Cubic Inches: 305
Notes
  • Fits most angle plug heads.
  • 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.
  • Will not work with Column Shift manual trans.

Year / Make / Model 1970-1981 Pontiac Firebird
Engine Type V8
Notes
  • Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket.
  • Reducers available with O2 sensor fitting see catalog listings.
  • Will not work with Column Shift manual trans.
  • Fits most angle plug heads.
  • For use with 265-400 Small Block Chevrolet Engine Swap

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