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The "Alignment Sleeve" assures a perfectly aligned joint with no weld slag inside to reduce the tube diameter and restrict air flow
pipe diameter X 13
1973-1973 GMC K15/K1500 Suburban 307 CID
1968-1972 Pontiac LeMans 350 CID
The performance exhaust system fits both 2 and 4-Wheel drive models with 148 or 157-inch wheelbases and is manufactured from 409S stainless steel for years of trouble-free service
1955-1957 Chevrolet Corvette Long Tube Header Hooker Super Competition 2292-1HKR hooker-headers The "Alignment Sleeve" assures aOverview These swap headers allow enthusiasts to drop an LS (all exc. LS7) engine into the ever popular 1955 1957 Chevy. These new headers were designed to fit with a stock gear box or Saginaw 605 gear box only. If using a unisteer rack system, see part # 2293 1HKR. They are a true 1 3 4" long tube design to sufficiently maximize the torque and horsepower of the free breathing LS engines. They are available in high temp black paint, silver ceramic or
