Speedmaster PCE305.1015.05 Chevy SBC 383 ci Forged Flat Top Pistons 4.060" Bore

The Speedmaster PCE305.1015.05 is a set of forged flat top pistons engineered for Chevy small-block (SBC) 383 cubic inch engine builds. These pistons feature a 4.060" bore diameter, 6.0" rod length, 1.100" pin diameter, and 0.927" compression height, delivering the precision fitment and durability required for serious engine rebuilds and performance upgrades.

Forged construction provides superior strength and heat resistance compared to cast alternatives, making these pistons ideal for high-RPM and boost applications. The flat top design supports stock or slightly modified cylinder head combinations and allows tuners to dial in compression ratios with confidence. Whether you're rebuilding a classic small-block for street performance or preparing an engine for the track, these Speedmaster forged pistons deliver reliable, proven durability and precision engineering at a competitive price point.

Key Features & Benefits

• Forged Construction: Superior strength and heat resistance for high-RPM and forced induction applications.
• Precision Bore Fit: 4.060" bore diameter engineered specifically for Chevy SBC 383 ci engines.
• Flat Top Design: Supports flexible compression ratio tuning and compatibility with standard to modified cylinder heads.
• Complete Specifications: 6.0" rod length, 1.100" pin diameter, 0.927" compression height for exact OEM fitment.

Specifications

Ideal Applications

• Street performance engine rebuilds and upgrades
• High-RPM and modified small-block racing applications
• Classic muscle car engine restoration and tuning
• Boost and forced induction engine builds