Manley 39555RH Big Block Chevy Stroker Rotating Assembly Kit Stroke Bore - 555ci 4.250 4.560

The Manley 39555RH is a high-performance Big Block Chevy (BBC) 555 cubic inch stroker rotating assembly kit, engineered for serious street/strip and race applications. Built around a 4.250-inch stroke and designed for a 4.560-inch bore, this rotating assembly delivers the displacement and bottom-end torque needed for maximum power output from the classic BBC platform.

Manley Performance is a trusted name in high-performance engine components, manufacturing connecting rods, crankshafts, pistons, and complete rotating assemblies to strict tolerances for demanding power levels. The 39555RH kit is designed to deliver a balanced, matched rotating assembly for builders targeting the popular 555ci BBC combination.

Key Specifications:

• Application: Big Block Chevrolet (BBC)
• Displacement: 555 cubic inches
• Stroke: 4.250 inches
• Bore: 4.560 inches
• Combustion Chamber Volume: 43cc
• Part Number: 39555RH

Key Features:

• Precision-matched rotating assembly components for optimal balance and performance
• Engineered to Manley's high-performance manufacturing standards
• Designed for high-horsepower street, strip, and competition BBC builds
• Matched stroke and bore combination optimized for 555ci displacement

The Manley 39555RH rotating assembly kit is an ideal foundation for any serious Big Block Chevy engine build seeking proven displacement, durability, and performance at a competitive price point.