Icon Premium Forged Piston Set - 4.000" Bore - 1.2 x 1.2 x 3.0 mm Ring Groove - Minus 12.5 cc - GM LS-Series (Set of 8) BLOWER-FILTER-IDA For the serious racer with

For the serious racer with high boost requirements

Extra-long doors

Machined Valve Locks

1964-1991 Pontiac Tempest

Fuel Injector Heat Shield

Icon Premium Forged Piston Set - 4.000" Bore - 1.2 x 1.2 x 3.0 mm Ring Groove - Minus 12.5 cc - GM LS-Series (Set of 8) BLOWER-FILTER-IDA For the serious racer withProduct Description: Piston Premium Forged Forged 4. 000 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