Overview 

The UEM piston designed for the GM 6.2L engine features a 4.065" standard bore and a 3.622" stroke with a flat-top configuration, ideal for high-performance and street applications. Made from cast 390 hypereutectic alloy, it provides enhanced strength and superior thermal stability. The piston is compatible with 6.098" connecting rods and .943" floating wrist pins, offering a compression ratio of 10.7:1 when used with 64.5cc cylinder heads. It includes a ring pack sized at 1.5mm, 1.5mm, and 2.5mm, and a compression height of 1.33", making it a solid option for naturally aspirated builds seeking durability and performance.

Features

• Designed for GM 6.2L LS3 engines

• 4.065" standard bore

• 3.622" stroke

• Flat-top piston design

• Made from cast 390 hypereutectic alloy for enhanced strength and thermal stability

• Compatible with 6.098" connecting rods

• Uses .943" floating wrist pins

• Compression ratio: 10.7:1 with 64.5cc cylinder heads

• Compression height: 1.33" (33.8 mm)

• Ring pack: 1.5mm / 1.5mm / 2.5mm

• Ideal for naturally aspirated high-performance or street builds