{"product_id":"64070-high-performance-top-end-gasket-seal-set-for-big-twin-evolution-1992later","title":"Est Top End Gaskets \u0026 Seals Big Twin Evo 92 \/ L 3-1 \/ 2\"Stock Bore Hi Performance Cometic C9635","description":"\u003ch1\u003eHIGH PERFORMANCE TOP END GASKET \u0026amp; SEAL SET FOR BIG TWIN EVOLUTION 1992\/LATER\u003c\/h1\u003eWEIGHT: 0.79\u003cbr\u003eDESIGNED FOR 3 1\/2\" (STANDARD BORE) CYLINDERS , THIS SET FEATURES HEAD , BASE AND LOWER ROCKER COVER GASKETS THAT ARE MADE FROM STAINLESS SPRING STEEL WITH A COATING OF NITRILE BUNADIEN RUBBER (NBR) ON EACH SIDE. THE HEAD GASKETS MEASURE .040\" THICK WITH A UNIQUE THREE PIECE DESIGN THAT CAN EASILY WITHSTAND 15:1 PLUS COMPRESSION RATIO. DUE TO THE EMBOSSED DESIGN AND NBR COATING OF THESE HEAD GASKETS , OIL DRAIN BACK O RINGS ARE NOT NECESSARY. THE BASE GASKETS AND LOWER ROCKER COVER GASKETS MEASURE .020\" THICK AND WILL NOT EXTRUDE OUT WHEN TORQUED LIKE THE OE STYLE PAPER GASKETS. THE TAPPET BLOCK GASKETS , GEAR COVER AND IGNITION COVER GASKET ARE MADE FROM A KEVLAR BASED FIBER MATERIAL. ALSO INCLUDED ARE RUBBER ROCKER COVER GASKETS AND A DUAL LIP CAM SEAL. FITS BIG TWIN EVOLUTION 1992\/LATER.\u003cbr\u003e3 1\/2\" (OE CYLINDERS) BORE , .040\" THICK 3 PIECE STAINLESS HEAD GASKET\u003cbr\u003eSINGLE LAYER STEEL BASE GASKET\u003cbr\u003eONE PIECE SINGLE LAYER STEEL ROCKER COVER GASKET\u003cbr\u003eALUMINUM FOAM MATERIAL GEAR COVER GASKET\u003cbr\u003eBIG TWIN EVOLUTION 1992\/1999\u003cbr\u003eBY: COMETIC GASKET","brand":"MID-USA","offers":[{"title":"Default Title","offer_id":20200112849007,"sku":"64070","price":168.54,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0081\/7401\/0479\/products\/0071494_0.jpg?v=1575378091","url":"https:\/\/www.widowmakersboneyard.com\/products\/64070-high-performance-top-end-gasket-seal-set-for-big-twin-evolution-1992later","provider":"Widowmaker's Boneyard","version":"1.0","type":"link"}