Manley 28565RHXX Big Block Chevy CID Rotating Assembly Stroke Bore Flat Top - 565 4.250 4.600 3cc

The Manley 28565RHXX is a precision internally balanced rotating assembly kit engineered for Big Block Chevy (BBC) engines displacing 565 cubic inches. Featuring a 4.250" stroke and designed for a 4.600" bore with -3cc flat top pistons, this assembly is built for serious street/strip and race applications demanding both reliability and high horsepower output. The "XX" suffix denotes the inclusion of optional "X" Series rod bearings with .001" extra clearance and "HX" Series main bearings with .001" extra clearance for tighter, more precise fitment.

Kit Components & Specifications:

• Crankshaft: Manley 4340 non-twist lightweight forged steel, 4.250" stroke — heat treated, stress relieved, shot peened, nitrided, and 100% Magnafluxed
• Connecting Rods: Manley 4340 forged steel H-beam, 6.385" length — heat treated, stress relieved, shot peened, nitrided, and 100% Magnafluxed; fitted with 7/16" ARP 2000 cap screws (rated to 1,500 hp)
• Pistons: Manley 2618 forged aluminum Platinum Series, 4.600" bore, -3cc flat top with lateral gas ports and chromoly premium wrist pins
• Rings: Total Seal high-performance piston rings
• Bearings: Clevite "H" Series narrowed rod bearings and "P" or "H" Series main bearings; "X" Series rod (+.001") and "HX" Series main (+.001") extra-clearance bearings included per XX designation
• Balance: Precision internally balanced by Manley in-house to within +/- 1% of bobweight
• Deck Height: Fits standard deck (9.800") Big Block Chevy blocks

This kit is ideal for high-performance Big Block Chevy builds where precise rotating assembly fitment and proven durability are essential. The Manley 28565RHXX delivers a complete, ready-to-install foundation capable of supporting builds up to 1,500 horsepower with the included ARP 2000 hardware.