Manley Chevrolet Small Block Piston Set - 4.035in Bore 1.550in CH, -4.00 CC

If you're rebuilding a Chevrolet small block engine and looking for a solid set of pistons, these Manley Performance "Platinum Series" pistons are a well-built option. They're designed for a 4.035-inch bore size and feature a -4.00 CC dish, which is a common configuration for many performance builds. Manley is a name trusted by professional engine builders, and these pistons are made to handle the demands of a performance engine.

These pistons start with domestic 2618 alloy forgings, which are known for their strength and ability to withstand high temperatures and pressures. They also feature proven cam and barrel skirt profiles. This design helps the piston move smoothly in the cylinder, reducing wear on the cylinder walls while still allowing the engine to make good power. Manley also pays close attention to the ring lands and grooves, machining them to strict standards to ensure a good seal with your piston rings, which is crucial for both power and oil control. Each set comes with tool steel wrist pins, and for some part numbers, upgrades to even tougher alloys are available, adding another layer of durability.

Manley's manufacturing process uses unique fixturing that allows them to machine the skirt and the ring grooves in the same operation. This ensures the ring grooves are perfectly square to the piston skirt, which is important for proper ring seal and overall engine performance. Keep in mind that these pistons are not CARB approved and cannot be shipped to California. You'll also want to check the manufacturer's instructions for any specific installation requirements, such as required ring gap or piston-to-wall clearance for your particular application.