{"product_id":"hypereutectic-dome-piston-set-4-000-bore-11-80cc-volume","title":"Hypereutectic Dome Piston Set, 4.000\" Bore, -11.80cc Volume","description":"The Speed-Pro H617CP is a set of eight hypereutectic aluminum dome pistons engineered for Small Block Chevy engines with a 4.000 in. bore. Constructed from an aluminum alloy with 16 percent silicon, these pistons offer enhanced strength and wear resistance. They are manufactured using advanced permanent-mold technology, ensuring a precise fit and tight bore clearances critical for optimal engine performance. The dome piston style includes two valve reliefs and a piston head volume of -11.80cc.\n\nThese pistons are suitable for a 4.000 in. bore with a 3.480 in. stroke and a 5.700 in. rod length, maintaining stock engine stroke type. The compression height is 1.560 in., with a dome height of 0.275 in. The wrist pin style is press-fit or floating, and they include wrist pin retainers and wrist pins. The pin diameter is 0.928 in., and the piston ring thickness is specified as 5\/64 in. x 5\/64 in. x 3\/16 in. A DurOshield® coated piston skirt is included for added durability.\n\nSpeed-Pro hypereutectic pistons are an excellent choice for high-performance street applications, bracket racing, and oval track racing. These pistons are sold as a set of 8 and are not remanufactured. The final bore size for proper piston-to-cylinder clearance should be between 4.000 in. and 4.0015 in.","brand":"Speed-Pro","offers":[{"title":"Default Title","offer_id":52872054505784,"sku":"H617CP","price":212.19,"currency_code":"USD","in_stock":true}],"url":"https:\/\/store.motormia.co\/products\/hypereutectic-dome-piston-set-4-000-bore-11-80cc-volume","provider":"MOTORMIA","version":"1.0","type":"link"}