Supertech Pistons are manufactured from Extruded High Silicon, Enhanced 4032 Alloy (with additional Cu, Ni & Mg) that has low thermal expansion, Excellent wear resistance and higher thermal conductivity. Our pistons with this alloy have withstood up to 42psi of boost, on alcohol, without any problems. Several heat treatments provide the piston with a high tensile strength and evenly distributed hardness. The pistons are machined in several steps in specially designed machines and in conventional CNC Machines with special diamond tools for dimensional precision, perpendicularity and flatness of the ring grooves. Contact reduction grooves are standard. Pin bores are honed and reamed for a precise fit. Wrist pins are constructed of Cold Extruded Chrome Moly Steel for high strength and secured with wire clip locks. Piston Rings are manufactured in Japan with the latest technology for high performance applications. Finally our "Phosphate Dry Lubricant Coating" is applied to protect the rings against "Micro Welding" and enhance lubricity in the Skirt /Cylinder area. Quality Control is performed after every step of the manufacturing process in a climate controlled environment to ensure reliability of dimensions. Please ask any questions you may have. We are always here to help and respond to inquiries in a quick, timely manner. Be sure to check out our other great items, we do combine shipping costs. (One shipping cost based on total package weight) |