Manley Chevy LS Series 4.065in Bore -18cc Platinum Series Dish Pistons Set

If you're building a high-performance Chevy LS engine, these Manley Platinum Series dish pistons are a solid choice. They're designed for a 4.065-inch bore and feature an -18cc dish, making them suitable for a variety of performance applications where you need to control compression ratio. Manley has been a go-to for serious engine builders for a long time, and these pistons reflect that experience.

What sets these apart is the material and the machining. They start with domestic 2618 alloy forgings, which are known for being strong and performing well under high stress. You also get tool steel wrist pins included, and for some part numbers, Manley offers upgrades to even tougher alloys like 9310 or Turbo Tuff/DLC for added durability. The ring lands and grooves are machined to very precise standards, which is crucial for getting a good seal and maximizing power. Plus, the cam and barrel skirt profiles are carefully shaped to help the piston move smoothly in the cylinder while still making good power, and they're designed to be easy on your cylinder walls.

Manley uses a unique machining process that allows them to turn the skirt and cut the ring grooves in one operation. This ensures that the ring grooves are perfectly square to the piston skirt, which is another key factor for a tight seal and reliable performance. These pistons are a great foundation for a custom engine build where you need parts you can count on.