The dormant beast. The block is original to the truck, but everything else is different. From my uncle who helped build the engine I know it was bored over .30 to make it a 383, has Eagle Specialty Products forged stroker rotating assembly (H-beam rods, flat pistons), hydraulic roller lifters, moly push rods, trick flow aulm. heads, roller rockers, comp cams camshaft (.5-.51 lift 288 dur.), stiffer springs, high flow oil pump, edelbrock performer seires valve covers, 36lb injectors, and more I just don't know about. It powers a built up 700R4 trans to a 10 bolt chevy rear-end. It used to have a B&M 144 Blower on it, but my dad must have put the TPI back on.