{"product_id":"1985-1998-harley-davidson-big-twin-evolution-head-gasket-teflon","title":"1985-1998 Harley Davidson Big Twin Evolution Head Gasket - Teflon","description":"\u003cp\u003eThis specialized head gasket is precision-engineered for the 1985-1998 Evolution Big Twin engine, featuring a high-grade Teflon (PTFE) construction designed for superior sealing and chemical resistance. The Teflon material acts as a premium, low-friction surface that allows for the necessary thermal expansion and \"scrubbing\" movement between the cylinder head and the block without compromising the integrity of the seal.\u003c\/p\u003e\n\n\u003cp\u003eDesigned to withstand the intense heat cycles of the air-cooled Evolution powertrain, this gasket effectively fills microscopic surface irregularities to prevent combustion leaks and oil migration. As a direct-fit replacement for iconic models like the Fat Boy, Heritage Softail, and Electra Glide, it provides the durability and torque retention required to maintain peak engine compression and long-term mechanical reliability.\u003c\/p\u003e","brand":"Harley-Davidson","offers":[{"title":"Default Title","offer_id":53027659022560,"sku":"NFHGBTBBTEF","price":2.36,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0790\/8451\/9648\/files\/BigTwinHeadGasket_HGBTBBTEF.png?v=1781093173","url":"https:\/\/nightforgeparts.com\/products\/1985-1998-harley-davidson-big-twin-evolution-head-gasket-teflon","provider":"Night Forge Parts","version":"1.0","type":"link"}