Manley Chevrolet LS Piston Set - 4.135in Bore 1.065in CH, -20.00 CC

If you're rebuilding the heart of your Chevrolet LS engine for serious performance, a strong set of pistons is where it all starts. This Manley Performance piston set is built for those demanding builds, designed to handle the extra stress and heat that come with boosted or high-compression applications. They feature a 4.135-inch bore size and a -20.00cc dish, which is a common configuration for many performance LS builds, especially those looking to achieve a specific compression ratio with a particular cylinder head volume.

Manley uses domestic 2618 alloy forgings for these pistons, a material known for its excellent strength and durability under high loads. This is crucial because forged pistons can withstand more abuse than cast pistons, making them the go-to choice for performance engines. The pistons also feature proven cam and barrel skirt profiles, which help them run smoothly and quietly while maintaining a good seal against the cylinder walls. This design contributes to both power output and longevity. You'll also find exacting standards applied to the ring lands and grooves, which is vital for ensuring a tight seal with your piston rings, leading to better compression and more power. The included chrome moly wrist pins are well-built and ready for action, and Manley's unique manufacturing process ensures the ring grooves are perfectly square to the piston skirt for optimal ring seal.

When you're putting together a high-performance LS engine, every component matters. This Manley piston set is a solid choice for builders who need reliable, strong internals. Keep in mind that these pistons are not CARB approved and cannot be shipped to California. For a complete build, you'll want to ensure you have the correct piston rings, connecting rods, and bearings to match these pistons and your intended engine specifications.