Manley Chevrolet LS Piston Set - 4.065in Bore 1.115in CH, -4.00 CC

This set includes eight forged pistons designed for Chevrolet LS engines. They feature a 4.065-inch bore size and a -4.00cc dish volume, with a 1.115-inch compression height. These pistons are built using Manley's signature 2618 alloy forgings, a material known for its exceptional strength and performance under demanding conditions. This makes them a solid choice for anyone rebuilding or upgrading their LS engine, whether for street performance or track use.

Manley uses domestic 2618 alloy forgings, which offer a strong foundation for high-performance engines. Each piston comes standard with premium chrome moly wrist pins, and for select applications like this one, upgrades to 9310 or Turbo Tuff/DLC alloys are available for even greater durability. The ring lands and grooves are machined to exacting standards, which is crucial for achieving a tight ring seal. A good seal means more consistent power delivery and better overall engine efficiency. The cam and barrel skirt profiles are carefully designed to generate substantial power while also being gentle on your cylinder walls, reducing wear over time. Manley's unique fixturing process allows them to machine the skirt and ring grooves in a single operation, ensuring perfect squareness between the ring groove and the piston skirt. This attention to detail contributes to improved performance and longevity.

When installing these pistons, remember that they are not CARB approved and cannot be shipped to California. It's always recommended to consult the manufacturer's installation instructions for specific details regarding ring gap, piston-to-wall clearance, and wrist pin installation. These pistons are a key component for building a robust LS engine capable of handling increased power and stress.