{"product_id":"ssi-hdshovh6678-mcvvs","title":"Harley SHOVELHEAD 74cu in. \"1966 - 1978\" - FKM Valve Seals - Set of 4 - NEW!!","description":"\u003cp\u003eFits Harley Davidson SHOVELHEAD 74 cu. in. \"1966 - 1978\" – \"VITON\" Valve Seals - Set of 4 - NEW!!\u003c\/p\u003e\u003cp\u003eThis listing is for a brand new set of 4 \"Metal Clad\" Viton Valve Seals. These seals will fit the Harley SHOVELHEAD 74 cu in. for the 1966 – 1978 model years. We also carry the seals for the 1979 - 1984 models which were used in the 80cu in.\u003c\/p\u003e\u003cp\u003eThese are some of the best seals on the market!! Yes, these are Viton material. Viton is not defined by the color being a blue tint, Viton is the material the seal is made from which can be produced in any color.\u003c\/p\u003e\u003cp\u003eThese are some of the best valve seals on the market because they are made out of Viton!!\u003c\/p\u003e\u003cp\u003eWHY BUY VITON SEALS?\u003c\/p\u003e\u003cp\u003eViton and other seals have several very crucial differences that make them especially well suited to certain applications. While both Viton and other seals both serve as great sealing options at moderate temperatures, Viton is far superior to other seals for high temperature applications. Viton seals provide an indefinite seal for temperatures up to 400°F, and for temperatures up to 600°F they offer an excellent seal for more than 48 hours. Valve seals made of non-Viton materials, such as Poly, are only effective up to 250°F.\u003c\/p\u003e\u003cp\u003eThese are brand new production seals. Viton has good flexibility like Nitrile, which means it can handle some runout between the valve stem and guide. It is also considered to be a more durable material than silicone. Viton also has better wear resistance than most other seal materials, making it a good choice for applications where long term durability is a must.\u003c\/p\u003e\u003cp\u003eViton seals provide less friction as well, due to 5% Teflon.\u003c\/p\u003e\u003cp\u003eWe also have these for most other engines if needed, so check out our other listings\u003c\/p\u003e\u003cp\u003eThese parts are brand new production!!!\u003c\/p\u003e\u003cp\u003eThe terms Shovelhead and Harley® are for descriptive purposes only. The trademark names are listed for reference purposes only. In no way are we or our parts affiliated with the Harley Davidson® Brand.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e SSI-HDSHOVH6678-MCVVS\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Make:\u003c\/strong\u003e Harley Davidson\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Model:\u003c\/strong\u003e Shovelhead\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Street Sport Industries","offers":[{"title":"Default Title","offer_id":67592277065821,"sku":"SSI-HDSHOVH6678-MCVVS","price":15.59,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0754\/8154\/6845\/files\/s-l1600_f6021d73-5e0c-4506-9ff2-ae92205d5997.jpg?v=1790802955","url":"https:\/\/mryellowcap.com\/products\/ssi-hdshovh6678-mcvvs","provider":"Ketron Brands","version":"1.0","type":"link"}