This listing is for a set of (8 ) +.060 over size forged flat top pistons and matching moly top rings compatible with early model small block Chevy's. Pistons are forged Under 3.000 Tons of Force. Coated skirt provides Scuff Resistance, Reduced Bore Clearances and enhanced Ring Sealing. Pistons feature Flat head w/4-valve reliefs. Approximately 10:1 compression ratio with 58cc heads. Slightly higher with over sizes. These can be used as a performance upgrade from stock. Good for street or race to 150 nitrous shot. Available in your choice of sizes. Please click size needed before adding to Cart!