Manley 28548R Big Block Chevy Stroker Rotating Assembly Kit Stroke Bore - 548ci 4.250 4.530 20cc

The Manley 28548R is a complete Big Block Chevy (BBC) 548 cubic inch stroker rotating assembly kit engineered for high-performance and racing applications. Built around a 4.250-inch stroke and designed for a 4.530-inch bore, this kit delivers the displacement and rotating mass precision needed to build a serious big-inch BBC powerplant.

Manley Performance has been a trusted name in high-performance engine components for decades, and this rotating assembly reflects their commitment to tight tolerances, premium materials, and race-proven durability. The -20cc piston dome specification allows builders to tune compression ratio in conjunction with their cylinder head selection, making this kit highly versatile for a range of street/strip and competition builds.

Key Features:

• Application: Big Block Chevy (BBC) engine platform
• Displacement: 548 cubic inches
• Stroke: 4.250 inches
• Bore Size: 4.530 inches
• Piston Dome: -20cc (flat-top/dish configuration for compression tuning)
• Manley-quality forged components for strength and reliability
• Designed for high-horsepower street, strip, and race applications
• Precision-balanced rotating assembly for smooth power delivery

Whether you are building a bracket racer, a street/strip muscle car, or a dedicated competition engine, the Manley 28548R provides the foundation for a powerful and reliable 548ci Big Block Chevy build.