Long Tube Headers for 70-81 GM F/A Body 396-502 BBC 1-7/8in Primary D316-B Sale 7L V8 1976 Buick Century

7L V8 1976 Buick Century Indianapolis 500 Pace Car 350/5

6 V8 1970 Dodge Challenger R/T 383/6

Removing ground to a circuit is a great feature to deactivate nitrous before the engine's rev limit is reached

8 L6 1969 Chevrolet P10 Van 230/3

Long Tube Headers for 70-81 GM F/A Body 396-502 BBC 1-7/8in Primary D316-B Sale 7L V8 1976 Buick CenturyOverview: 70 81 GM F & A Body BBC Long Tube Black 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