Drop in Heavy Duty pistons for your ls1. Uses stock rings, rods and pins. Comes with coated skirt and new pins. Press fit design. Will not work on Gen4 or floating pin rods. Available in stock 3.898 and 3.908 bore sizes. Flat top with no valve relief." Also a great upgrade for building an iron 5.0 with 4.8l crank and rods or an iron 5.7 with 5.3l crank and rods.
Optional Rings: Rings are moly coated steel top and 2nd with std tension oil ring. Standard Fit no filing needed. |