Speedmaster Chevy BBC 454 6.385" 4.330" Bore Dome Top Forged Pistons PCE305.1110.05

The Speedmaster PCE305.1110.05 is a set of forged pistons engineered for Chevy big-block 454 engines. Built with a dome-top design and precision-machined to a 4.330" bore diameter, these pistons deliver the durability and compression characteristics required for serious engine rebuilds and performance applications. Forged construction provides superior strength and reliability compared to cast alternatives, making them ideal for high-RPM and boost scenarios.

With a compression height of 1.270" and a skirt height of .990", these pistons are designed to fit within the Chevy BBC 454 block architecture. The dome-top configuration raises compression ratio and optimizes combustion chamber shape for better fuel efficiency and power delivery. Whether you're rebuilding a stock engine or customizing a classic Chevy for increased output, Speedmaster's forged piston design combines proven materials and engineering with the precision tolerances demanded by serious engine builders.

Key Features & Benefits

• Forged Construction: Durable forged alloy material provides superior strength and heat resistance compared to cast pistons.
• Dome Top Design: Raised dome shape optimizes compression ratio and combustion efficiency for improved performance.
• 4.330" Bore Diameter: Precision-machined to fit Chevy BBC 454 engines with exact dimensional specifications.
• BBC 454 Compatibility: Engineered specifically for Chevy big-block 454 engine platforms and rebuilds.
• High-Performance Rated: Suitable for high-RPM operation and demanding engine applications.

Specifications

Ideal Applications

• Engine rebuilds and restoration for Chevy BBC 454 blocks
• High-performance and racing engine builds
• Custom engine combinations requiring increased compression
• Classic and muscle car engine modifications