Long Tube Headers for 65-75 Olds 400-455 Olds 1-3/4in Primary D741-B awabsrear-abs 1 V8 1955 GMC 100-22

1 V8 1955 GMC 100-22 288/4

2001-2006 GMC Sierra 2500 HD

7L V8 1976 - 1979 Jeep CJ7 Renegade 304/5

2007-2013 Cadillac Escalade 376 CID

1J0 254 500 H

Long Tube Headers for 65-75 Olds 400-455 Olds 1-3/4in Primary D741-B awabsrear-abs 1 V8 1955 GMC 100-22Overview: 65 74 Olds 400 455 Long Tube Black 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