LS 5.3L FT Forged Piston Set 3.800 Bore

ICON FHR Forged Pistons are crafted from 4032 alloy, featuring an 11% silicon content for superior thermal expansion control, allowing for tighter piston-to-wall clearances compared to 2618 alloy. The added silicon enhances wear resistance on skirts and pin bores, making these pistons ideal for street and mild boosted applications. Key features include CNC machined crown and valve reliefs, top land mini-groove technology, UEM's unique in-house machined skirts, an accumulator groove for improved ring seal, and robust skirt and pin boss struts designed to handle high cylinder pressures. Wrist pins and spiral locks are included.