Long Tube Headers for 68-74 Olds 400-455 Olds Non Cat no EGR or A.I.R. D743 MediumMargin4x4 7L/V8 1981 - 1984 Chevrolet

7L/V8 1981 - 1984 Chevrolet Impala 5L/V8 1981 - 1982 Chevrolet Impala 4

25/8 V 1970 - 1972 Chevrolet El Camino SS 4

Series: Stealth Fuel Cell

4 V8 1975 - 1978 GMC C15 Suburban 454/7

Long Tube Headers for 68-74 Olds 400-455 Olds Non Cat no EGR or A.I.R. D743 MediumMargin4x4 7L/V8 1981 - 1984 ChevroletOverview: 68 74 Olds 400 455 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