LS1 RPM Speed Heavy Duty 6.0L Pistons

Drop in Heavy Duty pistons for your 6.0 LQ4/LQ9/LS2/L76/L77/L78/LY6/L98. 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 4.000 and oversized 4.020/4.030/4.040 bore sizes. Flat top with no valve relief or stock dish style available. Build up to 372 cid with 4.040 pistons and stock 3.622 crank.

Flat top pistons include hard anodized top and 1st ring land.

Optional Rings: Rings are moly coated steel top and 2nd with std tension oil ring. Standard Fit no filing needed.