Manley Chevrolet LS Piston Set - 4.080in Bore 1.115in CH, -4.00 CC

If you're building a high-performance Chevrolet LS engine, this Manley Piston Set is a solid choice for serious power. These pistons are designed for a 4.080-inch bore and feature a 1.115-inch compression height with a -4.00cc valve relief. They are built using Manley's signature 2618 alloy forgings, which are known for their exceptional strength and ability to handle the demands of boosted or naturally aspirated performance builds.

What sets these pistons apart is the attention to detail in their construction. They feature proven cam and barrel skirt profiles, which help reduce friction and wear on your cylinder walls while still generating substantial power. The ring lands and grooves are machined to exacting standards, ensuring a tight seal for improved combustion efficiency and more power output. Each set also includes tool steel wrist pins for added durability, and select part numbers like this one come with a moly skirt coating to further reduce friction and improve piston life.

Manley's unique manufacturing process allows them to machine the skirt and cut the ring grooves in a single operation. This ensures the ring grooves are perfectly square to the piston skirt, which is critical for optimal ring seal and overall engine performance. These pistons are a popular choice among professional engine builders and tuners who need reliable components for their custom LS builds.