Fits 1973-1974 GM C-10/20 2WD 1-7/8", LS Swap Long Tube Header-S/S 70101304-RHKR hood-scoops 5L V8 1971 Mercury Cougar

5L V8 1971 Mercury Cougar XR-7 429/7

5L V8 1969 - 1970 Chevrolet Nova 396/6

9L l6 1965 - 1967 Ford Ranchero Base 289/4

17410-65090

5L/H4 2008 - 2014 Subaru Impreza 2

Fits 1973-1974 GM C-10/20 2WD 1-7/8", LS Swap Long Tube Header-S/S 70101304-RHKR hood-scoops 5L V8 1971 Mercury CougarThese Hooker BlackHeart Headers fit 1973 1974 GM C 10 20 2WD Trucks with LS engines. Long tube design for optimum engine performance and stainless steel construction for maximum corrosion resistance. These Headers are designed for use with Standard 12621HKR engine mounting brackets. Features: For GM LS engine swaps into 1973 1974 GM C 10 20 2WD Trucks 1 7 8" primary tube diameter and 3" collector diameter ideal for "hot" LS1 LS6 LS2 or 5. 3L 6. 0L