{"product_id":"wiseco-85-50-mm-3366td-piston-kit-part-394m08550","title":"Wiseco 85.50 mm 3366TD Piston Kit, Part 394M08550","description":"Classic Forged 2-stroke pistons are perfect for those looking to rebuild their 2-stroke engine with reliable, high-quality components. These pistons cover a wide range of Powersports rebuilds, including vintage motocross models, classic street bikes, and snowmobiles. The forged material improves tensile strength over cast pistons, ensuring refreshed performance on the track or the trail.\n85.50 mm Bore\n\u003cul\u003e\n  \u003cli\u003eDedicated forgings and additional lightening operations allow for optimized strength-to-weight ratio\u003c\/li\u003e\n  \u003cli\u003eImproved tensile strength of forged material optimizes strength and service life\u003c\/li\u003e\n  \u003cli\u003eIncludes high-quality piston ring(s), wrist pin(s), and circlips\u003c\/li\u003e\n  \u003cli\u003eDesigned and built for each specific 2-stroke powersports engine\u003c\/li\u003e\n  \u003cli\u003eEngineered, forged, and machined in the USA in Mentor, OH\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe Wiseco 3366TD Classic Forged 2-Stroke Piston Kit, manufacturer part number 394M08550 and vendor part number 394M08550, is designed for select Yamaha 2-stroke powersports engine rebuilds. With an 85.50 mm bore, this piston kit fits the 1977–1978 Yamaha IT400 and 1977–1978 Yamaha YZ400.\u003c\/p\u003e\u003cp\u003eThe forged piston material provides improved tensile strength compared with cast pistons, supporting strength and service life in refreshed 2-stroke engines. Dedicated forgings and additional lightening operations help optimize the strength-to-weight ratio. The kit includes piston ring(s), wrist pin(s), and circlips.\u003c\/p\u003e\u003cp\u003eWiseco designs and builds each piston for the specific 2-stroke powersports engine application. This piston is engineered, forged, and machined in the USA in Mentor, Ohio. Verify engine specifications and application details before installation.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eBore: 85.50 mm\u003c\/li\u003e\n\u003cli\u003eForged construction improves tensile strength compared with cast pistons\u003c\/li\u003e\n\u003cli\u003eDedicated forgings and lightening operations optimize the strength-to-weight ratio\u003c\/li\u003e\n\u003cli\u003eIncludes piston ring(s), wrist pin(s), and circlips\u003c\/li\u003e\n\u003cli\u003eDesigned for specific 2-stroke powersports engine applications\u003c\/li\u003e\n\u003cli\u003eFits 1977–1978 Yamaha IT400 and 1977–1978 Yamaha YZ400\u003c\/li\u003e\n\u003cli\u003eEngineered, forged, and machined in the USA in Mentor, Ohio\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\n\u003cbr\u003e\n\u003cbr\u003e\nAir Freight Prohibited: false\u003cbr\u003e\nNot Carb Approved: true\u003cbr\u003e\nCarb Acknowledgement Required: true\u003cbr\u003e\nLtl Freight Required: false\u003cbr\u003e\nProp 65: Y\u003cbr\u003e\nPart Type: powersports\u003cbr\u003e\nEpa: N\/A\u003cbr\u003e\nRegular Stock: false\u003cbr\u003e\nUnits Per Sku: 1\u003cbr\u003e\nFitment:\u003cbr\u003e\n1977 Yamaha It400 Base\u003cbr\u003e\n1977 Yamaha YZ400 Base\u003cbr\u003e\n1978 Yamaha It400 Base\u003cbr\u003e\n1978 Yamaha YZ400 Base","brand":"Wiseco","offers":[{"title":"Default Title","offer_id":68300500271339,"sku":"658376","price":199.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/3882\/9547\/files\/780d1180f8c7d133af3efeaebd247fa7_509dd64f-677d-483b-98aa-ac0ac8d971e2.jpg?v=1793226932","url":"https:\/\/ctracingservices.com\/products\/wiseco-85-50-mm-3366td-piston-kit-part-394m08550","provider":"Cascade Tire \u0026 Racing Services","version":"1.0","type":"link"}