My SS commodore - Forged 383 LS1, C.O.M.E forged crank + rods, Diamond pistons, Clevite bearings, Yella Terra steel flywheel, Spec 3+ clutch, ported heads, Harland sharp 1.7:1 roller rockers, Comp hardened pushrods, Crow Cams double springs, Comp 224/224-.581/.581 112 cam, Mellings oil pump etc etc... this thing MOVES!