Wrist Pin Lock - Speed Pro - Spiral Lock - 1.053 in Wrist Pin Diameter - 0.064 in Thick - Steel - Set of 16

Pistons and Rings - Forged - 4.030 in Bore - 1.2 x 1.2 x 3.0 mm Ring Grooves - Minus 11.00 cc - GM LS-Series Gen III - Kit

Piston - Premium Forged - Forged - 3.780 in Bore - 1.5 x 1.5 x 3.0 mm Ring Groove - Minus 5.00 cc - GM LS-Series - Set of 8

Piston - Premium Forged - Forged - 3.800 in Bore - 1.5 x 1.5 x 3.0 mm Ring Groove - Minus 5.00 cc - GM LS-Series - Set of 8

Piston - Premium Forged - Forged - 3.810 in Bore - 1.5 x 1.5 x 3.0 mm Ring Groove - Minus 5.00 cc - GM LS-Series - Set of 8

Piston - Premium Forged - Forged - 3.780 in Bore - 1.5 x 1.5 x 3.0 mm Ring Groove - Minus 3.00 cc - GM LS-Series - Set of 8