Overview 

UEM Piston GM LS2/LS3/LSA/LS9, 6.0L/6.2L 4.080/4 inch Stroke Flat is a 4.080" bore and a 4.000" stroke with a flat-top design, making it perfect for naturally aspirated engine builds where a higher compression ratio is desired. Made from forged 2618 aluminum, these pistons offer exceptional strength and durability, ideal for withstanding high-stress and high-heat conditions. They are designed to work with 6.125" connecting rods and .927" wrist pins, featuring a compression height of 1.115" and a 9.240" deck height. Advanced features include CNC-machined valve reliefs for precise fitment, anodized crown and top land for enhanced durability, and accumulator grooves that help reduce ring flutter and improve sealing. The offset wrist pins minimize piston slap, while the M42 skirt coating reduces friction and wear, contributing to the piston's long-term reliability.

Features

1. Engine Compatibility: GM LS2, LS3, LSA, LS9 (6.0L / 6.2L)

1. Bore Size: 4.080"

1. Stroke: 4.000"

1. Piston Design: Flat top (ideal for naturally aspirated applications)

1. Material: Forged 2618 aluminum for exceptional strength and durability

1. Rod Length Compatibility: 6.125" connecting rods

1. Wrist Pin Diameter: .927", floating pin

1. Compression Height: 1.115"