Product Description Piston and Ring - Professional Series - Forged - 4.005 in Bore - 1.2 x 1.2 x 3.0 mm Ring Grooves - Minus 3.20 cc - GM LS-Series - Kit
RACE TEC PISTONS Race Tec Pistons Gm Ls Ft Piston Set 4.005 Bore -3.3Cc 1000603 MSRP: $851.28 Was: Now: $709.40