Manley 290230R SBC 434 ci Rotating Assembly 4.000" Stroke 4.155" Bore Stroker Kit

The Manley 290230R is a complete Small Block Chevy (SBC) 434 cubic inch rotating assembly engineered for high-performance street and race applications. Built around a 4.000-inch stroke and designed for a 4.155-inch bore, this stroker combination delivers maximum displacement from the classic GM small block architecture.

Manley Performance is a trusted name in professional-grade engine components, and this rotating assembly reflects their commitment to precision manufacturing and durability under extreme power loads. Whether you're building a dedicated track car or a high-output street machine, this assembly provides the foundation for serious horsepower.

Key Features:

• Engine Family: Small Block Chevy (SBC)
• Displacement: 434 cubic inches
• Stroke: 4.000 inches
• Bore: 4.155 inches
• Manufacturer Part Number: 290230R
• Precision-machined components for proper fitment and balance
• Designed for high-performance street and competition use
• Built to Manley's strict tolerances for long-term reliability

Manley's rotating assemblies are designed to work seamlessly together, reducing the guesswork of sourcing individual components and ensuring a properly matched, balanced combination straight out of the box.