Balanced 3.000" CAST CRANK,5.090" I-BEAM RODS,3/8" ARP 8740 BOLTS,HYPEREUTECTIC KB -6.5CC FLAT TOP 4.030" PISTONS,PLASMA-MOLY FILE-FIT RINGS,KING SI ROD/MAIN BEARINGS, PIONEER DAMPER & 164 TOOTH FLYWHEEL.