1975-1981 GM LS 2nd Gen (Camaro/Firebird) Mid Length Engine Swap Headers for hot LS1/LS6/LS2 (cam,heads,nitrous), 6.2L(L92)Vortec truck, LS3 or all supercharged LS/Vortec engine swaps requiring maximum ground clearance. Not legal for use on pollution controlled motor vehicles.