Manley Chevrolet Big Block Piston Set - 4.600in Bore 1.185in CH, 43.00 CC

Built with domestic 2618 alloy forgings, these Manley pistons are designed for serious Chevrolet big block builds where strength and durability are paramount. The 4.600-inch bore size and 1.185-inch compression height are key dimensions for achieving the desired compression ratio and piston-to-valve clearance in many performance applications.

Manley's signature cam and barrel skirt profiles are engineered to reduce friction and wear on cylinder walls while still generating substantial power. They also feature exacting ring lands and grooves, which are machined to strict standards to ensure a better ring seal, translating directly into more power. The unique fixturing Manley uses allows them to machine the skirt and ring grooves in one operation, ensuring the ring grooves are perfectly square to the skirt for optimal performance.

Included with these pistons are premium chrome moly wrist pins. For those looking for even more durability, Manley offers upgrades to 9310 and Turbo Tuff/DLC alloys on select part numbers. These pistons are a popular choice among professional engine builders and tuners who rely on Manley for their high-performance engine builds.