Manley Chevrolet Small Block Piston Set - 4.030in Bore 1.250in CH, -4.00 CC

This is a set of eight Manley Performance forged pistons, designed for Chevrolet small block engines. You get the pistons themselves, ready to be installed in your build. These pistons are crafted from domestic 2618 alloy forgings, a material known for its exceptional strength and ability to handle high performance demands. They feature proven cam and barrel skirt profiles, which help generate power while also being designed to be gentle on your cylinder walls during operation. Each piston includes premium chrome moly wrist pins for added durability.

Manley pays close attention to the details that matter for engine building. The ring lands and grooves are machined to strict standards, which is crucial for achieving a good seal with your piston rings, ultimately leading to more power. Their unique fixturing process allows them to machine the skirt and ring grooves in one operation, ensuring the ring grooves are perfectly square to the piston skirt. This level of precision helps ensure consistent performance and longevity for your engine build. The dish volume on these pistons is -4.00 CC, which is an important specification to consider when calculating your engine's compression ratio.

If you're building a high-performance Chevrolet small block, these Manley pistons are a solid option. They are a popular choice among professional engine builders and tuners who rely on Manley for their performance and durability. Keep in mind that these pistons are not CARB approved and cannot be shipped to California. Always refer to the manufacturer's installation instructions for proper fitment and assembly procedures, especially when calculating compression ratios and selecting other engine components like gaskets and rings.