Speedmaster PCE305.1010.04 Chevy SBC 383 5.7" Flat Top Forged Pistons Set

The Speedmaster PCE305.1010.04 is a set of forged pistons engineered for Chevy SBC 383 cubic-inch engine builds. These flat-top forged pistons feature a 5.7" compression height and are machined to a 4.040" bore diameter, making them a direct fit for small-block Chevy 383 stroker and performance engine applications. Forged construction delivers superior strength and durability compared to cast pistons, enabling reliable operation under higher boost and power levels.

Designed for high-performance engine rebuilds, these pistons are ideal for enthusiasts building race engines, street performance motors, or restoring classic Chevy powerplants with upgraded displacement. The flat-top design supports compression tuning and is compatible with aftermarket cylinder heads commonly paired with stroker builds. Each set is precision-manufactured to exacting tolerances to ensure proper ring seal and long engine life.

Key Features & Benefits

• Forged Construction: High-strength forged material resists deformation and cracking under extreme combustion pressures and elevated RPMs.
• Chevy SBC 383 Fitment: Precision-machined for 4.040" bore diameter and 5.7" compression height, direct fit for 383 cubic-inch stroker applications.
• Flat Top Design: Optimizes compression ratio and combustion chamber efficiency for performance tuning and power output.
• Performance-Grade Quality: Manufactured to tight tolerances for consistent ring seal, piston-to-wall clearance, and reliable long-term engine operation.

Specifications

Ideal Applications

• Chevy SBC 383 stroker engine builds and high-performance rebuilds
• Race engine and street performance motor assembly
• Classic Chevy restoration projects with upgraded displacement
• Aftermarket engine tuning and compression optimization