Fits 1973-74 Monte Carlo, Tube size 1-3/4", Street Stock Headers - S/S 2551-2HKR schultz-exhaust 75/8 V 1961 - 1974

75/8 V 1961 - 1974 Mercury Colony Park 4/8 V 1961 Mercury Commuter 3

22" Length Bulk Max Vacuum 27 in Hg Max Working PSI 350 PSI Maximum Continuous Length 50 Feet Min

4L V8 2011-2018 Ram 2500 ST 408/6

Only bolts up to Xforce cat back exhaust

3L V8 1979 - 1985 GMC G2500 Rally 350/5

Fits 1973-74 Monte Carlo, Tube size 1-3/4", Street Stock Headers - S/S 2551-2HKR schultz-exhaust 75/8 V 1961 - 1974These Hooker RacingHeart headers are for Street Stock cars with Small Block Chevy engine. They fit 1973 1974 GM A Body vehicles as well as 1970 1974 GM F body vehicles. They have 1 3 4 inch primaries with 3 inch collectors, 3 8 inch thick flanges to prevent warping and have merge spears for increased velocity. These are Natural Stainless Steel. Features: 1 3 4 inch primaries x 3 inch collectors Collectors feature merge spears for increased exhaust