Overview
UEM Piston GM LS2/LS3/LSA/LS9, 6.0L/6.2L 4.075/4 inch Stroke Flat With a 4.075" bore and a 4.000" stroke, this flat-top piston features 4cc valve reliefs, making it perfect for naturally aspirated builds aiming for higher compression ratios. The pistons are forged from 2618 aluminum, ensuring strength, durability, and resistance to heat and stress. They are engineered for use with 6.125" connecting rods and .927" floating wrist pins, with a compression height of 1.115". Performance-enhancing features include CNC-machined valve reliefs for precise valve clearance, an anodized crown and top land to protect against thermal expansion, and accumulator grooves to reduce ring flutter and improve sealing. Additionally, the pistons are equipped with offset wrist pins to reduce piston slap and noise, while the M42 skirt coating minimizes friction and extends the pistons' lifespan.
Features
- Engine Compatibility: GM LS2, LS3, LSA, LS9 (6.0L / 6.2L)
- Bore Size: 4.075"
- Stroke: 4.000"
- Piston Design: Flat top with 4cc valve reliefs
- Material: Forged 2618 aluminum for superior strength and durability
- Rod Compatibility: 6.125" connecting rods
- Wrist Pin Diameter: .927", floating pin
- Compression Height: 1.115"