Manley Chevy LT1 Direct Injected Series 4.070in Bore -2 cc Dish Extreme Duty Pistons

If you're building a high-performance Chevy LT1 engine, especially one with direct injection, these Manley Extreme Duty pistons are a solid choice. They're designed for the demands of serious engine builds, offering the strength and reliability that professional engine builders trust. With a 4.070-inch bore and a -2cc dish, they're engineered to work within specific compression ratios for boosted or naturally aspirated applications.

Manley uses domestic 2618 alloy forgings for these pistons, which is known for its superior strength and ability to handle high temperatures and pressures without deforming. The pistons feature proven cam and barrel skirt profiles, which help them run smoothly and quietly while minimizing wear on your cylinder walls. You'll also find exacting standards for the ring lands and grooves, ensuring a tight seal for better power output and reduced blow-by. Each piston set comes with premium chrome moly wrist pins, and Manley's unique fixturing process ensures the ring grooves are perfectly square to the piston skirts, which is critical for proper ring seal and overall engine health.

These pistons are built for durability and performance, making them a great foundation for a rebuilt or upgraded LT1 engine. Keep in mind that these are not CARB approved and cannot be shipped to California. Always refer to the manufacturer's installation instructions for proper fitment and assembly details.