Icon Premium Forged Piston Kit - Includes Rings - 4.030" Bore - 1.2 x 1.2 x 3.0 mm Ring Groove - Minus 20.0 cc - GM LS-Series 21300XR-O 570" guide applications

570" guide applications

Lightweight tubing with steel tip for cast iron camshaft

Spek Pro Electric Temperature Gauges

Five Star's exclusive ULTRAGLASS is three times stronger than standard hand-laid composite for increased impact absorption

Icon Premium Forged Piston Kit - Includes Rings - 4.030" Bore - 1.2 x 1.2 x 3.0 mm Ring Groove - Minus 20.0 cc - GM LS-Series 21300XR-O 570" guide applicationsProduct Description: Piston and Ring Premium Forged Forged 4. 030 in Bore 1. 2 x 1. 2 x 3. 0 mm Ring Groove Minus 20. 00 cc GM LS Series 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