Manley Chevrolet Big Block Piston Set - 4.600in Bore 1.270in CH, 43.00 CC

Built with domestic 2618 alloy forgings, these Manley pistons are a strong choice for your Chevrolet big block build. The 4.600-inch bore size and 1.270-inch compression height are key dimensions for achieving your desired compression ratio and deck height, especially with the included 43.00 CC valve reliefs. Manley's commitment to precision is evident in their exacting standards for ring lands and grooves, which directly impacts how well your piston rings seal against the cylinder wall, ultimately translating to more power.

You'll also find that these pistons feature proven cam and barrel skirt profiles. This design helps manage piston rock, reducing wear on your cylinder walls while still allowing the piston to generate substantial power. Manley uses unique fixturing to machine the skirt and ring grooves in one operation, ensuring the ring grooves are perfectly square to the piston skirt. This level of detail is what professional engine builders rely on for durability and performance.

Included with this set are premium chrome moly wrist pins, known for their strength. While these are not CARB approved and cannot be shipped to California, they represent a solid option for serious engine builds where strength and precise tolerances are paramount. Ensure you consult your engine blueprint and manufacturer's instructions for proper installation and assembly.