BALANCED 3.750" Cast Crank,5.700" I-BEAM Rods,3/8" ARP 8740 BOLTS,HYPEREUTECTIC KB -18CC INVERTED DOME 4.030" PISTONS,PLASMA-MOLY FILE-FIT RINGS,KING SI Rod/MAIN BEARINGS, DAMPER, AND 168 TOOTH FLEXPLATE.