Manley Chevrolet LS Piston Set - 4.125in Bore 1.065in CH, -31.00 CC

If you're building a high-performance Chevrolet LS engine, this Manley Performance piston set is a solid choice. These are forged pistons designed for significant power increases, commonly used by professional engine builders and tuners. They feature a 4.125-inch bore size, a 1.065-inch compression height, and a -31.00 CC dish, which is important for setting your compression ratio depending on your cylinder head volume.

Manley uses domestic 2618 alloy forgings, which are known for their strength and ability to handle high cylinder pressures and temperatures. The pistons also feature proven cam and barrel skirt profiles. These profiles are shaped to help the piston move smoothly in the cylinder, generating power while also being considerate of your cylinder walls. The ring lands and grooves are machined to strict standards to ensure a good seal with your piston rings, which is critical for both power and oil control. For added durability, these pistons come with tool steel wrist pins, and Manley's unique machining process ensures the ring grooves are perfectly square to the piston skirt.

This set includes eight pistons, eight wrist pins, and eight sets of locks. Please note that these pistons are not CARB approved and cannot be shipped to California. It's always a good idea to consult with your engine builder or refer to Manley's installation guidelines for specific details on ring gap, piston-to-wall clearance, and assembly.