
SKU: BLS1137-010. The CP Pistons Bullet Race Series piston set is engineered for high-performance Chevy LS3 builds that demand exceptional strength and precision. Designed with a 4.075-inch bore, 4.000-inch stroke, and 6.125-inch connecting rod, this forged piston set is ideal for stroked and race-focused LS3 engine combinations. Manufactured from premium forged aluminum alloy and CNC-machined to exacting tolerances, these pistons deliver excellent thermal stability, reduced friction, and consistent ring seal under extreme cylinder pressures. Supplied as a set of 8, this Bullet Race Series kit is trusted by professional engine builders pushing LS3 performance to the limit.