Piston Kit – 124″ – +.005″ – M8

Updates stock 107″, 114” or 117” motor to 124” or 128” when using 4.250” big bore cylinders; Valve pockets are designed to accept up to +4.00 mm oversized intake and exhaust valves; Type 3 hard-anodized crown offers corrosion resistance for alcohol-added fuels; Type 3 hard-anodized top ring groove eliminates micro-welding of ring to the groove and gives a hard-flat surface for ring to rotate on; OE-style round wire locks are easily installed; Heavy-duty wrist pins with true .9270” diameter to fit rods correctly ; Line2Line AST skirt coating starts out with a near-zero wall clearance and through the break-in period hones the cylinders to produce the correct oil wedge, keeping the piston square to the cylinder for best ring seal and quiet operation; Kit includes pistons, rings, pins and locks