{"product_id":"mid-usa-62606-head-gasket-pair-3-5-bore-40-harley-evolution-twin-cam-84-99","title":"Mid USA 62606 Head Gasket Pair 3.5\" Bore .40\" Harley Evolution \u0026 Twin Cam 84-99","description":"\u003cul\u003e\r\n\u003cli\u003e\u003cspan\u003e3 1\/2\" (standard) bore size, .040\" thickness\u003c\/span\u003e\u003c\/li\u003e\r\n\u003cli\u003e3 Piece Design\u003c\/li\u003e\r\n\u003cli\u003eExtreme Sealing Technology (EST) will eliminate head gasket problems\u003c\/li\u003e\r\n\u003cli\u003eThese are the best that we have ever seen for everything from 8.5:1 compression ratio up to 15:1 plus\u003c\/li\u003e\r\n\u003cli\u003eThree piece design features an aluminized stainless steel center sandwiched between two NBR coated stainless spring steel outer layers\u003c\/li\u003e\r\n\u003cli\u003eTo ensure the utmost sealing power, the outer layers are embossed at the cylinder bore and the oil drain backs provide a seal so good that O rings are not required\u003c\/li\u003e\r\n\u003cli\u003eDistributes heat exceptionally well from the head to the cylinder, thus eliminating hot spots that would normally cause a head gasket failure\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\u003cp\u003eFits:\u003c\/p\u003e\r\n\u003cul\u003e\r\n\u003cli\u003e1984-1999 Harley-Davidson Big Twin Evolution\u003c\/li\u003e\r\n\u003cli\u003e1988-Later Harley-Davidson Sportster Evolution\u003c\/li\u003e\r\n\u003c\/ul\u003e","brand":"Cometic","offers":[{"title":"Default Title","offer_id":42359333126215,"sku":"MU62606","price":47.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0635\/5953\/2615\/files\/0071525.jpg?v=1767715318","url":"https:\/\/easternperformance.com\/products\/mid-usa-62606-head-gasket-pair-3-5-bore-40-harley-evolution-twin-cam-84-99","provider":"Eastern Performance Cycles","version":"1.0","type":"link"}