Manley Chevrolet 5.3L LS Gen III Piston Set - 3.790in Bore 1.304in CH, -2.00 CC

Forged from domestic 2618 alloy, these Manley pistons are built for serious performance in Chevrolet 5.3L LS Gen III engines. The 3.790-inch bore size and -2.00cc dish volume are key specifications for builders looking to achieve specific compression ratios and power goals. Manley's signature cam and barrel skirt profiles are designed to reduce friction and wear on your cylinder walls while still generating substantial power, a balance that's crucial for a long-lasting, high-performance engine build.

You'll find exacting standards applied to the ring lands and grooves, which directly translates to better ring seal and, ultimately, more power. This attention to detail extends to their unique fixturing process, allowing them to machine the skirt and cut the ring grooves in one operation. This ensures the ring grooves are perfectly square to the piston skirt, which is vital for optimal ring function and preventing blow-by. Each set comes standard with premium chrome moly wrist pins, and for those seeking even greater durability, Manley offers upgrades to 9310 or Turbo Tuff/DLC alloys on select part numbers.

This piston set is a popular choice among professional engine builders and tuners who demand reliability and performance from their LS engines. While these pistons are not CARB approved and cannot be shipped to California, they represent a solid foundation for a powerful and durable engine build. If you're rebuilding the top end of your LS engine and need pistons that can handle the stress of increased performance, these Manley pistons are a well-built option.