1 SET IC604.060/1 SET 4000CD8.

This is an Icon Premium Piston Kit. It includes lateral gas ports, a centered pin, and deep valve reliefs for flat milled heads with 23-degree valve angles. The pistons are forged from 2618 alloy for demanding performance applications like very high compression ratios, boosted applications, and nitrous. Features top land mini groove technology, and skirts machined by UEM's unique in-house built CNC machines. Accumulator groove to help eliminate flutter and maximize ring seal. Skirt and pin boss struts designed to withstand heavy loads from high cylinder pressures. Wrist pins and spiral lock rings are included.