Manley 28598R BBC Rotating Assembly Stroke Bore Flat Top Pistons - 598 Kit 4.500 4.600 3cc

The Manley 28598R is a complete Big Block Chevy (BBC) 598 cubic inch rotating assembly kit engineered for serious performance engine builds. Featuring a 4.500" stroke and designed for a 4.600" bore, this kit delivers the displacement and strength demanded by high-output street, strip, and competition applications.

Kit Components & Specifications:

• Crankshaft: Manley 4340 non-twist lightweight forged steel, 4.500" stroke — heat treated, stress relieved, shot peened, nitrided, and 100% Magna Fluxed
• Connecting Rods: Manley 4340 forged steel H-beam, 6.700" length with 7/16" ARP 2000 cap screws (rated to 1,500 hp) — heat treated, stress relieved, shot peened, nitrided, and 100% Magna Fluxed
• Pistons: Manley 2618 forged aluminum Platinum Series, 4.600" bore, 1.245" compression height, -3cc flat top design
• Wrist Pins: Manley premium chromoly wrist pins included
• Piston Volume: -3cc flat top (approximately 10.0:1 compression ratio with 118cc heads)
• Block Requirement: Requires a 10.200" tall deck block

Key Features:

• All major components are heat treated, stress relieved, shot peened, and Magna Fluxed for maximum strength and reliability
• Platinum Series 2618 alloy pistons are engineered to withstand extreme forces and elevated temperatures — ideal for power-adder and nitrous applications
• Manley's proprietary multi-step top-ring groove machining ensures precise groove geometry for improved ring seal and efficiency
• H-beam rods rated to 1,500 hp with premium ARP 2000 fasteners
• 4340 forged steel crankshaft and rods provide an optimal strength-to-weight ratio

The Manley 28598R rotating assembly kit provides the foundation for a high-horsepower BBC 598 stroker build. Professional balancing is recommended prior to installation. Designed for use with a 10.200" tall deck Big Block Chevy block.