{"product_id":"2-spi-040-over-bore-piston-kits-for-ski-doo-many-1989-1999-583-sleds-77mm","title":"2 SPI .040 Over Bore Piston Kits for Ski-Doo Many 1989-1999 583 Sleds 77mm","description":"\u003ch2\u003e2 SPI .040 Over Bore Piston Kits for Ski-Doo\u003c\/h2\u003e\u003cp\u003eThese two SPI .040 over bore piston kits at 77mm size replace the original pistons in many Ski-Doo 583 sleds from 1989 to 1999, providing reliable compression and power for snowmobile engines.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThis pair of SPI .040 over bore piston kits is designed for Ski-Doo 583 snowmobile engines from 1989 through 1999, using a 77mm bore diameter to restore top-end performance. Each kit includes the piston, rings, and wrist pin needed for a complete rebuild, making it a direct fit for many Ski-Doo models of that era.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eManufactured to .040 over bore specifications for precise cylinder matching\u003c\/li\u003e\n\u003cli\u003e77mm piston diameter ensures proper clearance and compression\u003c\/li\u003e\n\u003cli\u003eIncludes rings and wrist pin for a complete piston assembly\u003c\/li\u003e\n\u003cli\u003eDesigned to handle the demands of high-rpm snowmobile operation\u003c\/li\u003e\n\u003cli\u003eDurable construction reduces wear and extends engine life\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\u003cli\u003efor Ski-Doo 583 Sleds (1989-1999)\u003c\/li\u003e\u003c\/ul\u003e\u003ch4\u003eOn-The-Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eIdeal for rebuilding Ski-Doo snowmobile engines needing an overbore refresh\u003c\/li\u003e\n\u003cli\u003eUsed in trail riding, racing, and recreational snowmobiling applications\u003c\/li\u003e\n\u003cli\u003eCommonly installed during top-end overhauls to restore lost compression\u003c\/li\u003e\n\u003cli\u003eSuitable for both stock replacement and performance rebuilds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eSpecs At A Glance\u003c\/h4\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBore Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e.040 over (77mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eKit Contents\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePiston, Rings, Wrist Pin\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSki-Doo 583 Engines (1989-1999)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch4\u003eGood To Know\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e What size overbore is this piston kit? \u003cstrong\u003eA:\u003c\/strong\u003e This kit is .040 over bore, meaning it measures 77mm across the piston skirt for engines that have been bored to that size.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Are these pistons compatible with stock Ski-Doo cylinders? \u003cstrong\u003eA:\u003c\/strong\u003e No, because they are .040 over, the cylinder must be bored and honed to match the 77mm piston – stock cylinders are smaller.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eSlight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.\u003c\/em\u003e\u003c\/p\u003e","brand":"Solid Spare","offers":[{"title":"Default Title","offer_id":44949795209302,"sku":"SZ1F15118","price":263.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/1_a07af152-b07d-4882-b9d1-167ed5fc2f41.jpg?v=1781399340","url":"https:\/\/www.solidspare.com\/products\/2-spi-040-over-bore-piston-kits-for-ski-doo-many-1989-1999-583-sleds-77mm","provider":"Solid Spare","version":"1.0","type":"link"}