Manley Chevrolet Big Block 4.560 Bore 4.250 Stk(STD Dec) 1.270 CD -3cc Dome Flat Top Piston Set of 8

Manley Performance is well-known for making strong engine components, and this set of pistons for Chevrolet Big Block engines is a prime example. These aren't just any pistons; they're built with a domestic 2618 alloy forging, which is a material chosen for its exceptional strength and ability to handle the demands of a high-performance engine. If you're rebuilding or upgrading your Big Block, these pistons are designed to be a solid foundation.

What sets these pistons apart is the attention to detail in their construction. The 2618 alloy provides the backbone, but Manley also machines them with specific cam and barrel skirt profiles. These profiles are designed to help the engine make power while also being considerate of your cylinder walls, reducing wear over time. They also hold exacting standards for the ring lands and grooves, which is crucial for getting a good seal from your piston rings. A good ring seal means more consistent compression and ultimately, more power from your engine. Manley uses unique fixturing to machine the skirt and ring grooves in one go, ensuring they are perfectly square to each other, which further aids in that critical ring seal.

This set includes eight pistons, each with a -3cc dome and a flat top, designed for a 4.560-inch bore with a 4.250-inch stroke. They also come standard with premium chrome moly wrist pins, known for their durability. While these pistons are built for performance, please note they are not CARB approved and cannot be shipped to California. They also carry a Prop 65 warning.