Manley Chevy LS Series 1.115in Bore 4.070in Stroke -18cc E/D

Manley's signature "Platinum Series" pistons start with domestic 2618 alloy forgings, a material chosen for its proven strength and performance under demanding conditions. These pistons are built for Chevy LS engines with a 4.070 inch bore and feature an -18cc dish, which is important for setting your compression ratio. The 1.115 inch wrist pin size is also a key specification to ensure compatibility with your connecting rods.

You'll find that Manley pays close attention to the details that make a difference. The cam and barrel skirt profiles are designed to generate power efficiently while also being gentle on your cylinder walls, reducing wear over time. They also use unique fixturing that allows them to machine the skirt and ring grooves in one operation. This ensures the ring grooves are perfectly square to the skirt, which is critical for a good seal and maximum power output. The ring lands and grooves themselves are held to exacting standards, further enhancing that seal.

These pistons come standard with premium Chrome Moly wrist pins, and for some part numbers, Manley offers upgrades to even more durable alloys like 9310 and Turbo Tuff/DLC. This level of detail is why professional engine builders and tuners trust Manley for their builds. Keep in mind that these pistons are not CARB approved and cannot be shipped to California. Always refer to the manufacturer's installation instructions for proper assembly and torque specifications.