{"product_id":"spi-top-end-gasket-kit-for-moto-ski-1979-1982-for-ski-doo-1979-1989-503-fan","title":"SPI Top End Gasket Kit for Moto-Ski 1979-1982 for Ski-Doo 1979-1989 503 Fan","description":"\u003ch2\u003eSPI Top End Gasket Kit for Moto-Ski and Ski-Doo\u003c\/h2\u003e\u003cp\u003eThis top end gasket kit from SPI is designed for Moto-Ski snowmobiles from 1979-1982 and Ski-Doo models from 1979-1989 equipped with the 503 fan engine, providing essential sealing for engine rebuilds.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThis SPI top end gasket kit includes all necessary gaskets for rebuilding the top end of 503 fan engines found in select Moto-Ski and Ski-Doo snowmobiles. It covers model years from 1979 through 1989 for Ski-Doo and 1979-1982 for Moto-Ski. Ideal for restoring compression and preventing leaks.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eOEM-spec gasket materials\u003c\/li\u003e\n\u003cli\u003eIncludes cylinder base, head, and exhaust gaskets\u003c\/li\u003e\n\u003cli\u003eSPI quality control\u003c\/li\u003e\n\u003cli\u003eResistant to heat and pressure\u003c\/li\u003e\n\u003cli\u003eComplete kit for top end overhaul\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003efor Moto-Ski (1979-1982) with 503 fan engine\u003c\/li\u003e\n\u003cli\u003efor Ski-Doo (1979-1989) with 503 fan engine\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eOn-The-Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eRebuilding top end of Ski-Doo or Moto-Ski snowmobile engines\u003c\/li\u003e\n\u003cli\u003eRestoring performance and reliability for vintage snowmobiles\u003c\/li\u003e\n\u003cli\u003eUsed during engine overhaul or gasket replacement\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eSpecs At A Glance\u003c\/h4\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSPI Top End Gasket Kit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEngine\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e503 Fan (Rotax)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible Brands\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMoto-Ski, Ski-Doo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eYear Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1979-1989\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 Does this kit include a head gasket? \u003cstrong\u003eA:\u003c\/strong\u003e Yes, the kit includes cylinder head, base, and exhaust gaskets.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Will this fit a 1985 Ski-Doo 503? \u003cstrong\u003eA:\u003c\/strong\u003e Yes, it fits Ski-Doo models with the 503 fan engine from 1979 to 1989.\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":44888328339542,"sku":"SZ1F07530","price":65.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/1_3d2900fb-0a8c-47df-b6bb-f147979e9264.jpg?v=1781090410","url":"https:\/\/www.solidspare.com\/products\/spi-top-end-gasket-kit-for-moto-ski-1979-1982-for-ski-doo-1979-1989-503-fan","provider":"Solid Spare","version":"1.0","type":"link"}