Speedmaster Chevy LS2 4.000" Bore 1.065" .927" Flat Top Forged Pistons PCE305.1123

The Speedmaster Chevy LS2 forged pistons (PCE305.1123) are precision-engineered components designed for high-performance LS2 engine builds and rebuilds. These pistons feature a 4.000" bore diameter with 1.065" and .927" specifications and a flat-top design, making them suitable for serious engine work where durability and exact fitment are critical.

Forged construction delivers superior strength and reliability compared to cast alternatives, essential for forced-induction applications, high-RPM operation, or aggressive street and racing scenarios. The flat-top design supports various compression ratio configurations, giving builders flexibility in engine tuning. Exact bore and spec matching ensures proper ring seal and piston-to-cylinder wall clearance for optimal performance and longevity. These pistons are ideal for LS2 engine swaps, restorations, stroker builds, and high-output modifications where OEM or quality replacement internals are required.

Key Features & Benefits

• Forged Construction: Superior strength and durability over cast alternatives for high-performance and forced-induction applications.
• Precision Bore Fit: 4.000" bore diameter with 1.065" and .927" specifications ensures exact fitment and proper ring seal.
• Flat-Top Design: Versatile geometry supports multiple compression ratio configurations for tuning flexibility.
• LS2 Compatibility: Purpose-built for Chevy LS2 engine platforms in builds, rebuilds, and performance modifications.
• High-RPM Capable: Forged construction handles sustained high-RPM operation and aggressive driving conditions.

Specifications

Ideal Applications

• LS2 engine rebuilds and restoration projects
• High-performance and forced-induction engine builds
• Street and racing engine modifications
• LS2 engine swap applications with upgraded internals