Overview
The UEM Icon Elite piston set for GM LS2, LS3, LSA, and LS9 engines (6.0L/6.2L) with a 4.010" bore and 4.000" stroke features a -20cc dished design, making it ideal for high-performance applications, especially those utilizing forced induction or nitrous systems. Crafted from forged 2618 aluminum, these pistons offer exceptional strength and durability under extreme conditions. They are compatible with 6.125" connecting rods and .927" wrist pins, featuring a compression height of 1.115". The pistons provide a compression ratio of approximately 9.7:1 with 64.5cc cylinder heads and 9.4:1 with 68.4cc heads. Additional features include anodized crowns and top lands for enhanced durability, CNC-machined valve reliefs, accumulator grooves to reduce ring flutter and improve sealing, offset wrist pins to minimize piston slap, and M42 skirt coating to reduce friction and wear. With a piston weight of 413 grams (excluding the 121-gram wrist pin), these pistons are designed to withstand the demands of high-horsepower builds.
Features
- Engine Compatibility: GM LS2, LS3, LSA, LS9 (6.0L / 6.2L)
- Bore Size: 4.010"
- Stroke: 4.000"
- Piston Design: -20cc dished top
- Material: Forged 2618 aluminum
- Rod Length Compatibility: 6.125"
- Wrist Pin Diameter: .927"
- Compression Height: 1.115"
- Compression Ratios:
- Approximately 9.7:1 with 64.5cc heads
- Approximately 9.4:1 with 68.4cc heads