{"product_id":"spi-040-over-bore-top-end-repair-kit-for-ski-doo-mxz-670-ho-summit-x-79mm","title":"SPI .040 Over Bore Top End Repair Kit for Ski-Doo MXZ 670 HO \u0026 Summit X 79mm","description":"\u003ch2\u003eSPI .040 Over Bore Top End Repair Kit 79mm for Ski-Doo\u003c\/h2\u003e\u003cp\u003eThis SPI .040 Over Bore Top End Repair Kit provides pistons, rings, and gaskets needed to restore compression and performance on Ski-Doo MXZ 670 HO and Summit X models with 79mm cylinders.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThe SPI .040 Over Bore Top End Repair Kit is designed to rebuild the top end of Ski-Doo snowmobile engines. This kit includes pistons, rings, wrist pins, and gaskets for a complete overhaul of 79mm cylinders. It is specifically intended for Ski-Doo MXZ 670 HO and Summit X sleds requiring a 0.040 overbore.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eIncludes 0.040 overbore pistons machined to precise tolerances\u003c\/li\u003e\n\u003cli\u003eHigh-quality ring set ensures optimal compression and oil control\u003c\/li\u003e\n\u003cli\u003eComplete gasket kit for a reliable seal during reassembly\u003c\/li\u003e\n\u003cli\u003eWrist pins and circlips included for easy installation\u003c\/li\u003e\n\u003cli\u003eDesigned to match OEM specifications for Ski-Doo 670 engines\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003efor Ski-Doo MXZ 670 HO\u003c\/li\u003e\n\u003cli\u003efor Ski-Doo Summit X\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eOn-The-Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eRebuilding the top end of a Ski-Doo snowmobile after high-mileage wear\u003c\/li\u003e\n\u003cli\u003eRestoring lost engine power caused by worn piston rings\u003c\/li\u003e\n\u003cli\u003ePerforming a complete engine overhaul during off-season maintenance\u003c\/li\u003e\n\u003cli\u003eRepairing a blown top end from overheating or detonation\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\u003e79mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOverbore\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.040 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eKit Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTop End Repair Kit\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 MXZ 670 HO \u0026amp; Summit X\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 Will this kit fit a standard bore cylinder? \u003cstrong\u003eA:\u003c\/strong\u003e No, this kit is designed for cylinders already bored 0.040 over; standard bore requires a different part number.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Does the kit include all gaskets needed? \u003cstrong\u003eA:\u003c\/strong\u003e Yes, the kit contains head gasket, base gasket, and all necessary seals for a complete top end rebuild.\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":44949963407446,"sku":"SZ1F16376","price":439.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/1_aa3a7d1f-bd53-4d5c-a717-13ca9a1d9e7d.jpg?v=1781401540","url":"https:\/\/www.solidspare.com\/products\/spi-040-over-bore-top-end-repair-kit-for-ski-doo-mxz-670-ho-summit-x-79mm","provider":"Solid Spare","version":"1.0","type":"link"}