Speedmaster PCE305.1100.03 Chevy SBC 383 6.0" Flat Top Forged Pistons 4.030" Bore

The Speedmaster PCE305.1100.03 are precision forged pistons engineered for Chevy small-block (SBC) 383 cubic inch engine builds. Featuring a 6.0" wrist pin height, 4.030" bore diameter, and durable flat-top design, these pistons deliver reliable performance for high-revving applications. The 1.125" top ring land and 0.927" compression height specifications ensure proper ring package fit and optimal combustion chamber geometry.

These forged pistons are ideal for engine builders and enthusiasts assembling SBC 383 stroker or performance engines where strength and precision matter. Forged construction provides superior durability compared to cast alternatives, critical for boost, nitrous, or high-RPM operation. Each piston is manufactured to exacting tolerances to ensure consistent fitment and long-term reliability in street, strip, or racing applications.

Key Features & Benefits

• Forged Construction: Premium forged material delivers superior strength and durability for high-stress engine environments.
• SBC 383 Specifications: Engineered specifically for Chevy small-block 383 ci builds with precision bore and height dimensions.
• Flat Top Design: Flat-top crown optimizes combustion chamber shape and compression ratio targeting.
• Precision Tolerances: Manufactured to exact specifications for consistent fitment and reliable performance across the engine build.

Specifications

Ideal Applications

• Chevy SBC 383 stroker engine builds
• Performance and high-RPM street engines
• Racing and strip applications
• Custom engine assembly and rebuild