{"product_id":"verify-p-n-empi-gtv-2-dual-port-cylinder-head-94mm-40-35-5mm-ss-valves-dual-spring","title":"EMPI GTV-2 Dual Port Cylinder Head | VW Type 1 94mm | 40\/35.5mm SS Valves, Dual Spring (98-1336-B)","description":"\u003ch2\u003e\u003cb\u003eEMPI GTV-2 Dual Port Cylinder Head — 94mm Bore, 40\/35.5mm SS Valves, Dual Spring (98-1336-B)\u003c\/b\u003e\u003c\/h2\u003e\n\u003cp\u003eRunning a high-lift cam in a 94mm big-bore? This is the \u003cb\u003eGTV-2 dual-port head\u003c\/b\u003e built for it. EMPI's GTV-2 head (98-1336-B) is machined for \u003cb\u003e94mm pistons\u003c\/b\u003e and assembled with \u003cb\u003edual hi-rev valve springs\u003c\/b\u003e to keep up with aggressive, high-RPM camshafts.\u003c\/p\u003e\n\u003cp\u003eIt runs \u003cb\u003e40×35.5mm stainless Manley valves\u003c\/b\u003e and ports 20% larger than stock — ready to run or port further. \u003cb\u003eSold each.\u003c\/b\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cb\u003eVehicle Fitment\u003c\/b\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eVW Beetle:\u003c\/b\u003e dual-port engine, 94mm bore\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eVW Bus:\u003c\/b\u003e dual-port engine\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eVW Karmann Ghia:\u003c\/b\u003e dual-port engine\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003eConfirmed:\u003c\/b\u003e VW Type 1 dual-port big-bore builds running 94mm bore with high-lift \/ high-RPM cams — 1914cc, 2110cc, 2276cc, 2332cc (Beetle, Bus, Karmann Ghia, Type 3, Thing). \u003cb\u003eNot confirmed:\u003c\/b\u003e stock 85.5mm or 90.5\/92mm bore, single-port engines, Type 4 engines.\u003c\/p\u003e\n\u003ch3\u003e\u003cb\u003eWhy Choose EMPI?\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp\u003eIts GTV-2 heads are a staple of big-bore Type 1 builds.\u003c\/p\u003e\n\u003ch3\u003e\u003cb\u003eKey Features \u0026amp; Benefits\u003c\/b\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003e94mm bore, GTV-2 dual port casting:\u003c\/b\u003e built for big-bore Type 1 engines.\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e40mm intake \/ 35.5mm exhaust stainless Manley valves.\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDual hi-rev valve springs:\u003c\/b\u003e for high-lift performance cams.\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003eChromoly retainers and hardened keepers.\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003eBronze valve guides.\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePorts 20% larger than stock:\u003c\/b\u003e port-ready for further flow work.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eAdded material around the combustion chamber:\u003c\/b\u003e allows deep fly cutting.\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e12mm 3\/4\" reach spark plug holes.\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003eRocker, exhaust, and intake studs included.\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e3-angle performance valve job.\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003eSold each.\u003c\/b\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cb\u003eTechnical Specifications\u003c\/b\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eValves:\u003c\/b\u003e 40mm intake \/ 35.5mm exhaust, stainless Manley\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSprings:\u003c\/b\u003e dual hi-rev\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePorts:\u003c\/b\u003e 20% larger than stock, port-ready\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSpark plugs:\u003c\/b\u003e 12mm 3\/4\" reach\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePart Number:\u003c\/b\u003e 98-1336-B | UPC: 707924443448\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSold as:\u003c\/b\u003e each\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cb\u003eFrequently Asked Questions\u003c\/b\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eWhy dual springs?\u003c\/b\u003e They handle high-lift, high-RPM camshafts that single springs can't keep up with.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eWhat bore are these for?\u003c\/b\u003e 94mm pistons (1914-2332cc).\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eAnything to check at install?\u003c\/b\u003e Verify rocker geometry and check for coil bind with the dual springs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDo I need lash caps?\u003c\/b\u003e Yes — required with stainless valves, sold separately (00-4006-0).\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eWhat's the part number?\u003c\/b\u003e EMPI 98-1336-B (UPC 707924443448).\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eAre you an authorized dealer?\u003c\/b\u003e Yes.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cb\u003eInstallation\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp\u003eLash caps (P\/N 00-4006-0) are required for all stainless steel valve applications — sold separately. 12mm long-reach spark plugs must be used in place of stock Bosch plugs. Verify rocker arm geometry and check for coil bind with dual springs.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003e\u003cb\u003eExplore Related Categories\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003ca href=\"\/collections\/engine-parts\"\u003eEngine Parts\u003c\/a\u003e · \u003ca href=\"\/collections\/all-vw-aircooled\"\u003eAll VW Air-Cooled\u003c\/a\u003e · \u003ca href=\"\/collections\/vw-beetle\"\u003eVW Beetle\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cb\u003eProp 65 Warning\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp\u003eWARNING: This product can expose you to chemicals including lead which are known to the State of California to cause cancer and reproductive harm. For more information, go to www.P65Warnings.ca.gov. All parts legal for use on pre-pollution controlled vehicles only.\u003c\/p\u003e","brand":"EMPI","offers":[{"title":"Default Title","offer_id":44924456370291,"sku":"98-1336-B","price":608.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0278\/2760\/1523\/files\/98-1336-B-scaled.jpg?v=1778011781","url":"https:\/\/www.washburnsmetal.com\/products\/verify-p-n-empi-gtv-2-dual-port-cylinder-head-94mm-40-35-5mm-ss-valves-dual-spring","provider":"Washburn's Metal","version":"1.0","type":"link"}