Long Tube Headers for 66-70 Ford 390-428 FE Motor 2in Primary D627 racepak 8L l6 1971 - 1973

8L l6 1971 - 1973 GMC G35/G3500 Van Vandura 307/5

Digressive valving: Instantly adapts to changing surface conditions

7 V8 1992 GMC C2500 Suburban 1985 - 1995 GMC C3500 350/5

Infiniti J30 (1993-1997)

7 V8 1974 Cadillac Fleetwood 60 Special Brougham 472/7

Long Tube Headers for 66-70 Ford 390-428 FE Motor 2in Primary D627 racepak 8L l6 1971 - 1973Overview: 66 70 Ford 390 428 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