Overview
The UEM Icon Elite piston set is specifically designed for GM LS2, LS3, LSA, and LS9 engines in both 6.0L and 6.2L configurations. With a 4.005" bore and a 4.100" stroke, these forged 2618 aluminum pistons feature a -20cc dished top, making them ideal for boosted or nitrous applications where lower compression is desired. They are compatible with 6.125" connecting rods and .927" wrist pins, and have a compression height of 1.065". These pistons provide a compression ratio of 9.9:1 with 64.5cc heads or 9.5:1 with 68.4cc heads. Additional features include CNC-machined valve reliefs, anodized crown and top land, accumulator grooves for better sealing, offset wrist pins to reduce piston slap, and a low-friction M42 skirt coating. Their robust construction and premium features make them a reliable choice for high-performance forced induction builds.
Features
- Designed for GM LS2, LS3, LSA, LS9 (6.0L / 6.2L engines)
- 4.005" bore size
- 4.100" stroke
- -20cc dished piston design (ideal for boosted or nitrous setups)
- Forged 2618 aluminum construction for strength and durability
- Compatible with 6.125" connecting rods
- .927" wrist pin diameter
- 1.065" compression height
- Compression ratio:
- 9.9:1 with 64.5cc heads
- 9.5:1 with 68.4cc heads
- 413g piston weight (excluding pin)
- Ring pack: 1.2mm / 1.2mm / 3.0mm (rings not included)
- CNC-machined valve reliefs for precision fit
- Anodized crown and top land for heat resistance
- Accumulator groove to reduce ring flutter
- Offset wrist pins to reduce noise and wear
- M42 skirt coating to reduce friction and extend piston life