The Bullet Piston LS1/LS2 4.030/4 Inch Stroke Dish -27.5 is a high-performance piston designed for LS1 (5.7L) and LS2 (6.0L) V8 engines. It features a 4.030-inch bore size and is designed for engines with a 4-inch stroke, making it suitable for both stock and performance builds. The piston has a dish-shaped top with a -27.5 cc volume, which lowers the compression ratio and allows for better tuning, especially in applications with forced induction or nitrous systems. This design helps improve the combustion process by optimizing the air/fuel mixture while controlling the engine’s overall compression.

Features

Brand: Bullet Piston

Compatibility: LS1 (5.7L) and LS2 (6.0L) engines

Bore Size: 4.030 inches

Stroke: 4 inches

Piston Top Design: Dish-shaped

Dish Volume: -27.5 cc (lowers compression ratio)

Application: Performance, forced induction, racing, and high-compression builds