Manley 39565R Big Block Chevy Stroker Kit Bore Stroke Engine Crankshaft Rotating Assembly - 565ci 4.600 4.250 43cc

The Manley 39565R is a high-performance stroker kit designed for Big Block Chevy (BBC) engines, delivering a massive 565 cubic inch displacement. Built to Manley's exacting standards, this rotating assembly kit is engineered for enthusiasts and racers demanding maximum power output and long-term reliability from their BBC builds.

This kit is configured around a 4.250-inch stroke and a 4.600-inch bore, with 43cc piston dome/dish volume, allowing builders to achieve their target compression ratio with the appropriate cylinder head combination. Manley's rotating assembly components are manufactured from premium materials and held to tight tolerances, ensuring proper balance and durability under high-load, high-RPM conditions.

Key Features:

• Application: Big Block Chevy (BBC) engine platform
• Displacement: 565 cubic inches
• Stroke: 4.250 inches
• Bore: 4.600 inches
• Piston Volume: 43cc
• Engineered for high-performance street, strip, and competition applications
• Manufactured by Manley Performance — a trusted name in racing engine components
• Precision-balanced components for smooth, reliable power delivery

Manley Performance has been a leader in high-performance engine parts for decades, producing components used in professional racing and high-horsepower street builds worldwide. The 39565R stroker kit is an ideal foundation for a serious BBC power plant.