Speed Engineering Mandrel Bent, 304 Stainless Shorty Headers Compatible with all LS engines 1-5/8" primary runner tubes 2.5" collector Includes: headers w/ graphite gaskets optional MLS gaskets optional header to head, bolt kit Vehicle Applications (suggested by Speed Engineering): 1960 - 1998 C10 / C1500 Trucks 1967 - 1981 Chevrolet Camaro 1964 - 1972 Chevrolet Chevelle 1968 - 1974 Chevrolet Nova Note: If using a larger 4L80E or older Turbo 350/400 transmission the bellhousing ears may need to be trimmed for proper clearance. These headers are tucked in tight due to narrow older frame clearance. Fits 6, 8, and 10 Speed Auto Transmissions. (Warning) This is a RACE ONLY product manufactured and sold for installation on vehicles to be used solely for competition purposes. Once this part is installed, the vehicle may never be used, or registered or licensed for use, on a public road or highway. If you install this part on your vehicle and use the vehicle on a public road or highway, you will violate the Clean Air Act 203(a)(3), 42 U.S.C, 7522(a)(3) and may be subject to personal civil or criminal liability.