{"product_id":"2-spi-piston-kits-for-1978-1984-moto-ski-futura-sonic-l-c-standard-bore-69-5mm","title":"2 SPI Piston Kits for 1978-1984 Moto-Ski Futura \u0026 Sonic L\/C Standard Bore 69.5mm","description":"\u003ch2\u003eSPI Piston Kits for Moto-Ski Futura \u0026amp; Sonic L\/C (1978-1984)\u003c\/h2\u003e\u003cp\u003eThese SPI piston kits replace OEM pistons for 1978-1984 Moto-Ski Futura and Sonic L\/C snowmobiles with standard bore 69.5mm, providing reliable engine rebuild components.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThese piston kits are aftermarket replacements designed for Moto-Ski Futura and Sonic L\/C models. Each piston kit includes a piston, rings, and wrist pin for a standard bore of 69.5mm. Ideal for restoring compression and performance in 1978-1984 Moto-Ski snowmobiles.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eMade from high-strength aluminum alloy for durability\u003c\/li\u003e\n\u003cli\u003ePrecision-machined to exact standard bore dimensions (69.5mm)\u003c\/li\u003e\n\u003cli\u003eIncludes premium piston rings for consistent compression\u003c\/li\u003e\n\u003cli\u003eIncludes wrist pin and circlips for complete installation\u003c\/li\u003e\n\u003cli\u003eDesigned to match OEM specifications for reliable fit\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003efor Moto-Ski Futura (1978-1984)\u003c\/li\u003e\n\u003cli\u003efor Moto-Ski Sonic L\/C (1978-1984)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eOn-The-Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eEngine rebuild for 1978-1984 Moto-Ski snowmobiles\u003c\/li\u003e\n\u003cli\u003eTop-end overhaul to restore compression\u003c\/li\u003e\n\u003cli\u003eReplacing worn pistons in high-mileage sleds\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\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e69.5mm Standard\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eQuantity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2 Piston Kits\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFitment\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1978-1984 Moto-Ski Futura \u0026amp; Sonic L\/C\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 is the bore size of these pistons? \u003cstrong\u003eA:\u003c\/strong\u003e These pistons have a standard bore of 69.5mm, suitable for stock cylinders of 1978-1984 Moto-Ski Futura and Sonic L\/C snowmobiles.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Are these piston kits complete? \u003cstrong\u003eA:\u003c\/strong\u003e Yes, each kit includes piston, rings, wrist pin, and circlips for a full 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":44949828173910,"sku":"SZ1F15325","price":274.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/1_ae47e6a1-f33c-446e-9255-2ce47db0732a.jpg?v=1781399621","url":"https:\/\/www.solidspare.com\/products\/2-spi-piston-kits-for-1978-1984-moto-ski-futura-sonic-l-c-standard-bore-69-5mm","provider":"Solid Spare","version":"1.0","type":"link"}