description. ls3/428 twin turbo, 1100 hp motec m84-ecm motec wire harness, cnc ported heades w/ rev valves,diamond forged pistons w/ total seal rings callies 4340 crank, callies i beam rods,comp hyd roller cam shaft, arp head studs, main studs & rod bolts,clevite hd rod bearing & main bearings,4130 pushrods,cloyes double row timing set,garret turbos, tail 60mm wastegates,stainless turbo heades ...