Doug's Headers - D320
Headers - Full Length - 2 in Primary - 3.5 in Collector - Gaskets / Hardware Included - Steel - Ceramic - Big Block Chevy - GM F-Body 1967-69 / X-Body 1968-74 - Pair
Doug's Long Tube Header 67-69 F Body/68-74 X Body 396-502 BBC W/O EGR/A.I.R. 2" Primary 3 1/2" Collector Silver Ceramic Coated D320
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.
- 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
