Manley Chevrolet LS Piston Set - 4.185in Bore 1.115in CH, -18.00 CC

Manley Platinum Series pistons feature 2618 alloy forgings, proven cam and barrel skirt profiles, tool steel wrist pins, and moly skirt coatings. Designed for superior performance and durability, these pistons ensure strength, enhanced ring seal, and maximum horsepower. They utilize an offset wrist pin design and come with roundwire locks, .210 wall tool steel wrist pins, and pressure balance grooves. Piston rings are sold separately. Compression ratios are calculated at 0.00" deck clearance, a 9.240" deck height, and a .042" thick compressed head gasket. Compression Ratio 10.2:1 with 64cc heads and 10.6:1 with 66cc heads.