this is the new 383 stroker home made from the stock 350 block: tapped in four bolt mains, all balanced forged internals: SRP pistons, Eagle 6" H-beam rods, chrome molly rings, hi volume pumps, aluminum edelbrock RPM heads with roller .580 lift hyd cam/roller lifters and rockers, MSD with 6AL ignition module, Be Cool aluminum radiator with dual electric fans (never goes over 200)