{"product_id":"4-layer-mls-head-gasket-0-040-thick","title":"4-Layer MLS Head Gasket 0.040\" Thick","description":"This gasket utilizes a robust 4-layer MLS (Multiple Layer Stainless Steel) construction. It features specialized embossments that increase the active combustion sealing height, making it ideal for high-output engines prone to head lift or movement. The 0.040\" thickness is optimized for use with O-rings in extremely high-output scenarios for reliable combustion sealing. A unique internal silicone bead is integrated around the oiling passages to ensure superior fluid sealing.\n\nFor extreme applications, when paired with SpeedFactory's Extreme Duty L19 Head Stud Kit, these gaskets have been tested up to 1000HP in non-O-ringed blocks and over 1400HP in O-ringed, sleeved blocks. The design is not a stopper ring type, which the manufacturer notes is more conducive to O-ring placement and function in extreme builds.\n\nFurther enhancing its performance and installation capabilities, the head stud holes are enlarged to accommodate 1\/2” head studs. The two OEM-sized locating dowel holes are the only ones requiring modification for 1\/2” studs, significantly reducing engine assembly effort. These gaskets are OE quality, produced by an OE-certified manufacturer (ISO 9001, ISO\/TS16949, ISO 14001 certified).","brand":"SpeedFactory Racing","offers":[{"title":"Default Title","offer_id":52866375680312,"sku":"SF-02-200","price":101.63,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/687688529.jpg?v=1787906913","url":"https:\/\/store.motormia.co\/products\/4-layer-mls-head-gasket-0-040-thick","provider":"MOTORMIA","version":"1.0","type":"link"}