{"product_id":"empi-as41-magnesium-alloy-engine-case-stock-vw-type-1-air-cooled-98-0431-b","title":"EMPI AS41 Magnesium Engine Case | VW Type 1 Air-Cooled | Stock 85.5mm Bore, 8mm Studs (98-0431-B)","description":"\u003ch2\u003e\u003cb\u003eEMPI AS41 Magnesium Alloy Engine Case — Stock 85.5mm Bore (98-0431-B)\u003c\/b\u003e\u003c\/h2\u003e\u003cp\u003eThe case is the foundation every air-cooled build sits on, and EMPI's \u003cb\u003eAS41 magnesium\u003c\/b\u003e case (98-0431-B) is the all-new, stock-spec replacement for a cracked, line-bored, or worn-out original. Same lightweight \u003cb\u003eAS41 magnesium alloy\u003c\/b\u003e the factory used on late Type 1 engines, cast fresh — not a used core hoping to survive another rebuild.\u003c\/p\u003e\u003ch3\u003e\u003cb\u003eVehicle Fitment\u003c\/b\u003e\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eVW Beetle:\u003c\/b\u003e 1966–1979\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eVW Super Beetle:\u003c\/b\u003e 1971–1979\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eVW Karmann Ghia:\u003c\/b\u003e 1966–1974\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eVW Type 3:\u003c\/b\u003e 1966–1973\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eVW Bus:\u003c\/b\u003e 1966–1979\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eConfirmed for VW Type 1 1200–1600cc stock-displacement builds; accepts stock 85.5mm cylinders and 8mm case studs. Not for big-bore 90.5\/92\/94mm builds or Type 4 engines.\u003c\/p\u003e\u003ch3\u003e\u003cb\u003eKey Features \u0026amp; Benefits\u003c\/b\u003e\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eAll-new AS41 magnesium alloy casting:\u003c\/b\u003e the lightest production-spec case material\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eStock 85.5mm bore and standard main bearing size:\u003c\/b\u003e a true stock rebuild foundation\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDual-relief oiling, 8mm case-stud threads:\u003c\/b\u003e universal stock configuration\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eBrand-new machining throughout:\u003c\/b\u003e cam tunnel, main saddles, lifter bores\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eEliminates a fatigued core:\u003c\/b\u003e no risk of building on a multiple-time-rebuilt case\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003e\u003cb\u003eTechnical Specifications\u003c\/b\u003e\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eMaterial:\u003c\/b\u003e AS41 magnesium alloy, new casting\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eBore:\u003c\/b\u003e Stock 85.5mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eStuds:\u003c\/b\u003e 8mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eRelief:\u003c\/b\u003e Dual\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMain bearing:\u003c\/b\u003e Standard size\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePart Number:\u003c\/b\u003e 98-0431-B\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eUPC:\u003c\/b\u003e 707924368109\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCountry of Origin:\u003c\/b\u003e Brazil\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eShipping weight:\u003c\/b\u003e 27 lb\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003e\u003cb\u003eFrequently Asked Questions\u003c\/b\u003e\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eIs this a new case or a rebuilt core?\u003c\/b\u003e All-new casting — not a used core.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eWhat bore does it take?\u003c\/b\u003e Stock 85.5mm cylinders; it is not bored for big-bore barrels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eAluminum or magnesium?\u003c\/b\u003e AS41 magnesium alloy — lighter than aluminum, the factory late-model material.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eWhat stud size?\u003c\/b\u003e 8mm case studs, dual relief.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eWhat's the part number?\u003c\/b\u003e EMPI 98-0431-B (UPC 707924368109).\u003c\/li\u003e\n\u003c\/ul\u003e\u003chr\u003e\u003ch3\u003e\u003cb\u003eExplore Related Categories\u003c\/b\u003e\u003c\/h3\u003e\u003cp\u003e\u003ca href=\"\/collections\/engine-parts\"\u003eEngine Parts\u003c\/a\u003e \u003ca href=\"\/collections\/engine\"\u003eEngine\u003c\/a\u003e \u003ca href=\"\/collections\/all-vw-aircooled\"\u003eAll VW Air-Cooled\u003c\/a\u003e\u003c\/p\u003e\u003ch3\u003e\u003cb\u003eProp 65 Warning\u003c\/b\u003e\u003c\/h3\u003e\u003cp\u003eWARNING: This product can expose you to chemicals which are known to the State of California to cause cancer and reproductive harm. For more information, go to www.P65Warnings.ca.gov.\u003c\/p\u003e","brand":"EMPI","offers":[{"title":"Default Title","offer_id":45116545400947,"sku":"98-0431-B","price":1831.6,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0278\/2760\/1523\/files\/98-0431-B.jpg?v=1781845520","url":"https:\/\/www.washburnsmetal.com\/products\/empi-as41-magnesium-alloy-engine-case-stock-vw-type-1-air-cooled-98-0431-b","provider":"Washburn's Metal","version":"1.0","type":"link"}