Comp Cams LS Front Covers fit all LS 1, 2, 3, 6 & 7 engines, OEM and aftermarket, including RHS LS race blocks. These LS engine front covers feature provisions for a timing pointer, OEM camshaft sensor and any regular small block chevy crank trigger. Compatible with either standard snout or long snout crankshafts. These covers easily fit double roller timing chains and high pressure/volume oil pumps. Both covers come with gaskets and crank seal: no modifications needed.