Manley Chevrolet LS Piston Set - 4.130in Bore 1.065in CH, -20.00 CC

Built with domestic 2618 alloy forgings, these Manley pistons are designed to handle the demands of high-performance Chevrolet LS engines. The 4.130-inch bore size and -20.00cc dish volume are specific choices that influence compression ratio, making them a key component for engine builders looking to tune their power output precisely.

Manley's approach includes proven cam and barrel skirt profiles, which help generate significant power while minimizing wear on cylinder walls. The ring lands and grooves are machined to exacting standards, promoting a better seal for improved power delivery. Each set comes standard with chrome moly wrist pins, and for certain applications, upgrades to 9310 or Turbo Tuff/DLC alloys are available for even greater durability. The unique fixturing Manley uses allows for skirt turning and ring groove machining in a single operation, ensuring the ring grooves remain perfectly square to the skirt, which is critical for optimal engine performance.

These pistons are a popular choice among professional engine builders and tuners who rely on Manley's reputation for superior performance and durability. Please note that this part is not CARB approved and cannot be shipped to California.