Manley Chevy LT1 Direct Injected Series 4.00in Stroke 4.065in Bore -10 cc Dish Extreme Duty Pistons

Manley Performance is well-known for making strong engine components that professional builders trust. These Extreme Duty pistons are part of their Direct Injected Series, specifically designed for Chevy LT1 engines. They feature a 4.00-inch stroke, a 4.065-inch bore, and a -10cc dish, making them a solid choice for serious engine builds where reliability and performance are key.

These pistons are forged from domestic 2618 alloy, a material chosen for its exceptional strength and ability to handle high performance demands. They come with premium chrome moly wrist pins, and Manley's attention to detail extends to the ring lands and grooves, which are machined to strict standards to ensure a better ring seal and unlock more power. The cam and barrel skirt profiles are carefully designed to generate power efficiently while also being gentle on your cylinder walls, which can help extend engine life. Manley uses a unique fixturing process that allows them to machine the skirt and ring grooves in one operation, ensuring they are perfectly square to each other for optimal performance.

Because these are extreme duty pistons, they are intended for high-performance applications. It's important to note that these pistons are not CARB approved and cannot be shipped to California. Always refer to the manufacturer's installation instructions for proper fitment and assembly procedures.