Icon Premium Forged Piston Set - 4.030" Bore - 1.2 x 1.2 x 3.0 mm Ring Groove - Minus 12.5 cc - GM LS-Series (Set of 8) H77715FXXL Single chamber

Single chamber

The FAST LSX/LSXR/LSXRT Fuel Rails feature a larger internal diameter that dampens the pulses and provides increased fuel volume

040" and larger include a hollow nozzle screw

X-Terminator

Icon Premium Forged Piston Set - 4.030" Bore - 1.2 x 1.2 x 3.0 mm Ring Groove - Minus 12.5 cc - GM LS-Series (Set of 8) H77715FXXL Single chamberProduct Description: Piston Premium Forged Forged 4. 030 in Bore 1. 2 x 1. 2 x 3. 0 mm Ring Groove Minus 12. 50 cc GM LS Series Set of 8 Icon Pistons brings the same quality and performance you've come to expect from United Engine brands. ICON forgings are created at our in house facility, utilizing the latest innovations in piston forging technology. Each ICON piston is purpose built from the ground up for extreme high performance street or racing