COMPETITION COMPONENTS STROKER KIT FOR 5.7 HEMI WITH COMPSTAR 4340 CRANK, COMPSTAR 4340 H-BEAM RODS AND ROSS DOMED 3.937 BORE PISTONS. 10 TO 1 COMPRESSION RATIO. INCLUDES RINGS AND BEARINGS. BALANCING OPTIONAL DESIGNED FOR NATURALLY ASPIRATED OR NITROUS COMBOS