The Ernst Greg’s Hard Shell Engine Protector protects engines from damaging dust, dirt, debris and hard objects. This shell fits first generation Chevrolet small block V-8 engines, either long or short block, standard and vortec head. The cam valley cover is used to protect engines when intake manifolds are removed, and the cylinder deck covers protect the cylinder block deck and pistons when heads are removed. This protector also offers enough clearance for domed pistons.