Manley 29555RH BBC 555ci Rotating Assembly Kit 4.250" Stroke / 4.560" Bore 43cc Dish

The Manley 29555RH is a complete Big Block Chevy (BBC) rotating assembly kit engineered for serious street and race engine builds targeting 555 cubic inches of displacement. Built around a 4.250" stroke and 4.560" bore with 43cc dish pistons, this kit delivers everything needed to assemble a high-output BBC bottom end with matched, quality-tested components.

Key Features:

• 4340 Forged Steel Crankshaft — Lightweight, heat-treated, and nitrided for maximum strength and durability under high-stress conditions
• 4340 Forged Steel H-Beam Connecting Rods — Paired with 7/16" ARP 8740 cap screws, rated up to 900 hp for big block applications
• 2618 Aluminum Platinum Series Forged Pistons — 43cc dish design with a 4.560" bore, forged from high-strength 2618 alloy for superior thermal tolerance
• Premium Chrome Moly Wrist Pins — Lightweight and strong for reduced reciprocating mass
• Total Seal Piston Rings — High-performance ring package included for immediate assembly
• Clevite® "H" Series Rod Bearings (Narrowed) — High crush, hardened steel back with thin overlay for superior load handling
• Clevite® "P" Series Main Bearings — Matched main bearings included for complete bottom-end assembly

The Manley 29555RH rotating assembly is factory balanced and designed for straightforward installation into Big Block Chevy engine platforms. Whether building a high-horsepower street engine or a dedicated race application, this kit provides a solid, pre-matched foundation for a reliable and powerful BBC build.