The lightest weight fabricated cover available. We start with a sheet formed .090'' 6061-T6 cover, insert the fastener tubes for strength and precision heli-arc weld the assembly together. Available with either a roll formed rail for maximum weight savings or a welded CNC billet rail. Both versions offer a perfectly flat gasket surface for maximum sealing and to resist oil and vacuum leaks. Ideal for dry sump or vacuum pump assisted applications. Features include a tall design to clear any valvetrain, no breather holes to allow for your individual placement and type, mill finish and a die stamp embossed JEG'S logo for a crowning touch. Includes fasteners. Gaskets sold separately.