Manley Chevy LT1 Direct Injected Series 4.00in Stroke 4.125in B -20 cc Dish Platinum Series Pistons

Manley pistons are precision-machined from high-strength 2618 alloy forgings, designed for optimal performance and durability. They feature a lightweight yet robust construction, incorporating proven cam and barrel skirt profiles, and moly skirt coatings on select part numbers. The unique "one fixturing" manufacturing method ensures perfect ring groove to skirt squareness, contributing to maximum horsepower. These pistons utilize an offset wrist pin design, a 1.2, 1.2, 3mm ring package, forced pin oiling, and a pressure balance groove. Premium Chrome Moly wrist pins are included as standard, with options for 9310 alloy pins for extreme duty applications. The design focuses on enhanced ring seal and power output while being gentle on cylinder walls.