Speedmaster PCE305.1010.02 SBC 383 ci Flat Top Forged Pistons 4.020" Bore

The Speedmaster PCE305.1010.02 is a set of forged pistons engineered for small-block Chevy (SBC) 383 cubic-inch engine builds. Designed with a flat-top crown and precision-forged construction, these pistons deliver durability and reliability in both street and racing applications where custom displacement builds are common.

These flat-top forged pistons are sized at 4.020" bore with a 5.7" rod length, 1.425" pin diameter, and 0.927" ring grooves, making them suitable for SBC 383 ci engine modifications. The forged construction provides superior strength compared to cast alternatives, offering better resistance to detonation and the ability to handle aggressive tuning. Whether you're building a hot rod, performance street engine, or racing platform, these pistons provide the foundation needed for a reliable, hard-working displacement increase.

Key Features & Benefits

• Forged Construction: Forged design delivers superior strength and detonation resistance for high-performance engine builds.
• SBC 383 ci Specific: Precision-engineered for small-block Chevy 383 cubic-inch displacement applications.
• Flat-Top Crown: Flat-top design supports various compression ratios and tuning configurations.
• Precision Bore & Pin Size: 4.020" bore and 1.425" pin diameter ensure proper fitment and longevity.

Specifications

Ideal Applications

• SBC 383 ci engine displacement builds
• High-performance street engine modification
• Racing and performance applications
• Hot rod and custom engine projects