CP Pistons Bullet Race Series Pistons 4.075 Bore 4.000 Stroke 6.125 Rod Set of 8 for Chevy LS3

Designed for high-performance applications in Chevrolet LS3 engines, this precision-engineered piston and rod assembly optimizes combustion efficiency and mechanical durability. Featuring a 4.075-inch bore and 4.000-inch stroke, these components are built to exacting tolerances to ensure consistent, reliable operation under demanding race conditions.

The assembly incorporates a 6.125-inch connecting rod length, carefully selected to improve engine dynamic balance and reduce piston side loading. This configuration enhances overall mechanical efficiency and contributes to improved power output and engine longevity.

Key Features and Specifications:

• Bore Diameter: 4.075 inches—optimized for increased displacement within LS3 blocks.
• Stroke Length: 4.000 inches—engineered for maintaining precise piston travel and combustion dynamics.
• Connecting Rod Length: 6.125 inches—balances piston speed and side loading for enhanced durability.
• Material Composition: Manufactured using high-strength forged aluminum alloy by CP Pistons, known for superior fatigue resistance and heat dissipation.
• Design: Bullet Race Series pistons feature advanced skirt coatings to reduce friction and wear, improving longevity and performance under high-RPM operation.
• Manufacturing Precision: CNC-machined to tight tolerances ensuring optimal ring seal and minimized blow-by.

The combination of material choice and design features supports elevated thermal stability and mechanical strength, critical for motorsport and high-performance street applications. The pistons' architecture also promotes efficient combustion chamber shape, contributing to improved power delivery and throttle response.

Integration into Chevy LS3 engines benefits from CP Pistons’ extensive expertise in race-proven components, ensuring compatibility with stock and aftermarket valvetrain setups. This assembly maintains critical clearances for piston-to-valve and piston-to-cylinder wall interactions, reducing risk of mechanical interference.

Construction quality and dimensional accuracy make these components a reliable choice for engine builders seeking to maximize durability and performance in high-stress environments.

Vehicle Fitment: Suitable for Chevrolet LS3 engine platforms requiring bore and stroke specifications of 4.075 and 4.000 inches respectively, and rod length of 6.125 inches.