GM LS Piston Set 4.030 Bore -20.7cc

GM LS Piston Set 4.030 Bore -20.7cc Piston - AutoTec - Dished - Forged - 4.030 in Bore - 1.5 x 1.5 x 3.0 mm Ring Grooves - Minus 20.70 cc - GM LS-Series - Set of 8