{"product_id":"1985-1998-harley-davidson-big-twin-evolution-head-gasket-silicone","title":"1985-1998 Harley Davidson Big Twin Evolution Head Gasket - Silicone","description":"\u003cp\u003eThis premium head gasket is specifically engineered for the 1985-1998 Big Twin Evolution engine, featuring a high-performance silicone coating designed to provide superior sealing under high-temperature conditions. The specialized silicone surface is crafted to conform to minor surface imperfections and irregularities on both the cylinder head and engine block, ensuring a reliable, leak-proof barrier against combustion gases and oil.\u003c\/p\u003e\n\n\u003cp\u003eDesigned to withstand the significant thermal expansion and contraction characteristic of the air-cooled Evolution powertrain, this gasket offers excellent heat resistance and long-term durability. As a direct-fit replacement, it is an ideal choice for riders and mechanics looking for a high-integrity seal during top-end maintenance or rebuilds, helping to maintain peak engine compression and overall mechanical efficiency for classic Big Twin models.\u003c\/p\u003e","brand":"Harley-Davidson","offers":[{"title":"Default Title","offer_id":53027658989792,"sku":"NFHGBTBBSIL","price":2.36,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0790\/8451\/9648\/files\/BigTwinHeadGasket_HGBTBBSIL.png?v=1781093173","url":"https:\/\/nightforgeparts.com\/products\/1985-1998-harley-davidson-big-twin-evolution-head-gasket-silicone","provider":"Night Forge Parts","version":"1.0","type":"link"}