Description: Brand New Supertech Pistons Including Pistons, Rings, Wrist Pins and Locks fits:1990-1993 Mazda Miata 1.6L Engines, B6 Supertech Pistons Part # P4-MA790-N1 - 79mm Bore (+1mm Over Size) - 10.6:1 CompressionComp Height - 1.260" | Pin Diameter - 20mm | Weight - 258 Grams | -1cc DomeLet IPG Parts be your one stop shop for all your Performance needs !! 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) Shipping Policy: We strive to ship your order in a prompt manner to meet the criteria for shipping time that we specify in the Item information. We offer a variety of shipping options based on what product you are purchasing and your desired time frame for delivery to meet the needs of all of our customers. Shipping charges are non-refundable. We will gladly combine shipping charges to one charged based on the total weight of the package. Return Policy: We always look to satisfy our customers in whatever needs they may have. Returns are accepted within 14 business days of receiving the product. A 15% restocking fee may apply to your return, please contact us for details. Items must be in New condition with Original Packaging intact to be returned. Shipping charges are non-refundable. IPGparts has been in business for 15 years servicing the Automotive Performance Industry. We are proud to bring you fair prices on the top parts available for the automotive performance industry. Working closely with many of the top business names in the industry and located in Orlando, FL we are a full product support facility with the ability to obtain any product that you have in mind. We have the experience and know how to guide you in the right direction for your parts purchases as you build your high performance automobile. Our racing programs offer us the chance to test and use quality products on the market to further develop and ultimately allow us to give real world feedback on the hottest and most useful products. The parts you see offered for sale are the best of the best. We don't just sell parts to maintain the business, we sell the parts that will help you perform better and WIN !!! * Some images being used are just for representation purposes and may not reflect the actual product you receive... ...but the product you receive will be specifically for your application as listed in the description * *Florida residents please add sales tax.*
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