Manley 28632RH Big Block Chevy Rotating Assembly Stroke Bore - 632 4.750 4.600

The Manley 28632RH is a complete rotating assembly engineered for Big Block Chevy 632 cubic inch builds, featuring a 4.750-inch stroke and designed for 4.600-inch bore applications. This precision-balanced assembly is built for high-performance street and strip applications with power outputs up to 1,500 horsepower.

Complete Assembly Includes:

• 4340 forged steel crankshaft with 4.750-inch stroke for 10.200-inch deck height blocks
• 4340 forged steel H-beam connecting rods (6.700-inch length) with 7/16-inch ARP 2000 cap screws
• Forged aluminum flat-top pistons with 4.600-inch bore, 1.120-inch compression height, and -3cc dome volume
• Premium chrome moly wrist pins
• High-performance piston rings
• Clevite H-Series narrowed rod bearings and main bearings

This assembly is precision internally balanced by Manley and delivers approximately 10.5:1 compression ratio when paired with 118cc chambers. The -3cc flat-top piston design makes it ideal for naturally aspirated and moderate boost applications. Rated for 900 horsepower with standard ARP 8740 hardware or up to 1,500 horsepower with the included ARP 2000 cap screws.

Specifications:

• Displacement: 632 cubic inches
• Stroke: 4.750 inches
• Bore: 4.600 inches
• Rod Length: 6.700 inches
• Compression Height: 1.120 inches
• Piston Dome: -3cc (flat top)
• Deck Height: 10.200 inches (tall deck block required)
• Compression Ratio: 10.5:1 (with 118cc chambers)

Manley Performance has been manufacturing premium engine components since 1966, and their rotating assemblies are trusted by professional engine builders and racers worldwide for their quality, precision, and durability.