Long Tube Headers for 55-57 Chevy 396-502 BBC 2in Primary Ceramic Coated D354 gauges-clusters-and-clocks 7L V8 1965 - 1966

7L V8 1965 - 1966 Chevrolet Impala Base 396/6

1975-1980 Oldsmobile Cutlass 260 CID

1975-1981 Pontiac LeMans 305 CID

Greater power gains are achieved with a larger high-performance intercooler

4581 707AG

Long Tube Headers for 55-57 Chevy 396-502 BBC 2in Primary Ceramic Coated D354 gauges-clusters-and-clocks 7L V8 1965 - 1966Overview: 55 57 Chevy BBC Long Tube Silver Ctd 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. Features: 3 8" Thick machined flanges to prevent warping Precision formed long transition collectors and long tube design reduces backpressure