DMR "C" kits are built with Oldsmobile cast cranks and billet "H" beam Molnar rods. The DMR custom cast crank kit come with custom pistons made to any compression or any ring combination. Includes Oldsmobile cast crank, Diamond 1/16 - 3/16 forged pistons, billet steel "H" beam rods, pins, file fit rings, drilled and coated main bearings, coated rod bearings, damper, and flexplate. These kits are cross drilled and balanced. You will need to state compression and bore desired. Call for more info.