{"product_id":"gsc-p-d-4g63t-evo-1-9-90-98-dsm-chrome-polished-exhaust-valve-31-5mm-head-1mm-set-8","title":"GSC P-D 4G63T Evo 1-9 \/ 90-98 DSM Chrome Polished Exhaust Valve - 31.5mm Head (+1mm) - SET 8","description":"\u003cp\u003e\u003cstrong\u003eSKU:\u003c\/strong\u003e \u003cspan itemprop=\"sku\"\u003e2003-8\u003c\/span\u003e | \u003cstrong\u003eUPC:\u003c\/strong\u003e GSC2003-8\u003c\/p\u003e\n\n\u003ch4\u003e\u003cstrong\u003eGSC P-D 4G63T Evo 1-9 \/ 90-98 DSM Chrome Polished Exhaust Valve - 31.5mm Head (+1mm) - SET 8\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eGSC Power-Division chrome polished exhaust valves feature 31.5mm oversized heads and fit the 4G63T engine in Mitsubishi Lancer Evolution 1-9 models and 1990-1999 DSM vehicles including Eclipse GST GSX Talon TSi Galant VR-4 and Laser RS. This set of 8 one-piece forged valves improves exhaust flow and withstands high heat in performance engines. Stem diameter measures 6.48mm with overall length of 109.9mm for direct compatibility after machining.\u003c\/p\u003e\n\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOversized 31.5mm head +1mm:\u003c\/strong\u003e Boosts exhaust flow volume for quicker cylinder scavenging and power gains in turbocharged 4G63T builds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChrome polished stems:\u003c\/strong\u003e Cuts friction against guides enhances heat dissipation and extends valve life under high RPM stress\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStellite bead welded seats:\u003c\/strong\u003e Delivers seat recession resistance stronger than coatings for long-term reliability in racing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSwirl polished backs and tops:\u003c\/strong\u003e Sharpens airflow over valve surfaces to support higher boost levels without restriction\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOne-piece forged steel build:\u003c\/strong\u003e Maintains structural integrity at redline with bead blast finish for smooth operation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eProduct Notes\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eRequires valve seat machining for +1mm oversized heads during installation\u003c\/li\u003e\n\u003cli\u003eInspect valve springs and retainers for compatibility with performance camshafts\u003c\/li\u003e\n\u003cli\u003ePackages in protective foam-lined box measuring 6in x 4in x 2in\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eProfessional installation recommended.\u003c\/li\u003e\n\u003cli\u003ePerform three-angle valve job to match oversized heads and stellite seats\u003c\/li\u003e\n\u003cli\u003eCompatible with stock DSM Evo heads no special hardware needed\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eThis Part Fits\u003c\/h4\u003e\n\u003ctable border=\"1\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eYear\u003c\/th\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eSubmodel\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e1990-1998\u003c\/td\u003e\n\u003ctd\u003eEagle\u003c\/td\u003e\n\u003ctd\u003eTalon\u003c\/td\u003e\n\u003ctd\u003eTSi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1990-1994\u003c\/td\u003e\n\u003ctd\u003eMitsubishi\u003c\/td\u003e\n\u003ctd\u003eEclipse\u003c\/td\u003e\n\u003ctd\u003eGS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1990-1999\u003c\/td\u003e\n\u003ctd\u003eMitsubishi\u003c\/td\u003e\n\u003ctd\u003eEclipse\u003c\/td\u003e\n\u003ctd\u003eGST\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1990-1999\u003c\/td\u003e\n\u003ctd\u003eMitsubishi\u003c\/td\u003e\n\u003ctd\u003eEclipse\u003c\/td\u003e\n\u003ctd\u003eGSX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1996-1999\u003c\/td\u003e\n\u003ctd\u003eMitsubishi\u003c\/td\u003e\n\u003ctd\u003eEclipse\u003c\/td\u003e\n\u003ctd\u003eSpyder GST\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1991-1992\u003c\/td\u003e\n\u003ctd\u003eMitsubishi\u003c\/td\u003e\n\u003ctd\u003eGalant\u003c\/td\u003e\n\u003ctd\u003eVR-4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2005-2006\u003c\/td\u003e\n\u003ctd\u003eMitsubishi\u003c\/td\u003e\n\u003ctd\u003eLancer Evolution\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2005-2006\u003c\/td\u003e\n\u003ctd\u003eMitsubishi\u003c\/td\u003e\n\u003ctd\u003eLancer Evolution\u003c\/td\u003e\n\u003ctd\u003eMR\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2005-2006\u003c\/td\u003e\n\u003ctd\u003eMitsubishi\u003c\/td\u003e\n\u003ctd\u003eLancer Evolution\u003c\/td\u003e\n\u003ctd\u003eRS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2006\u003c\/td\u003e\n\u003ctd\u003eMitsubishi\u003c\/td\u003e\n\u003ctd\u003eLancer Evolution\u003c\/td\u003e\n\u003ctd\u003eSE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1990-1994\u003c\/td\u003e\n\u003ctd\u003ePlymouth\u003c\/td\u003e\n\u003ctd\u003eLaser\u003c\/td\u003e\n\u003ctd\u003eRS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch4\u003eWhy Choose GSC Power-Division?\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eLeads valvetrain components for 4G63T in drag road race applications worldwide\u003c\/li\u003e\n\u003cli\u003eBuilds valves with submerged arc stellite welding unmatched by competitors\u003c\/li\u003e\n\u003cli\u003eEngineers every dimension for DSM Evo cylinder heads from dyno testing\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003e\u003cstrong\u003eFrequently Asked Questions\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e Will these valves fit all Evo 1-9 models?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e Yes set matches 4G63T heads in Evo 1 through 9 including US 2003-2006 Lancer Evolution variants after standard +1mm machining\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e What finish and material details apply?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e One-piece forged steel with chrome polished stems stellite bead seats swirl polished heads and bead blast surface for flow and wear resistance\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e What warranty coverage exists?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e GSC Power-Division offers limited lifetime warranty against manufacturing defects when installed by certified shop\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eShipping \u0026amp; Handling\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMethod:\u003c\/strong\u003e UPS Ground or USPS Priority\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailability:\u003c\/strong\u003e In stock - ships same or next business day\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackaging:\u003c\/strong\u003e Secure foam-lined box 6 x 4 x 2 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 1.0 lb product 1.5 lb shipping\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"GSC Power Division","offers":[{"title":"Default Title","offer_id":43814050201679,"sku":"GSC2003-8","price":168.11,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1062\/7920\/files\/gsc-p-d-4g63t-evo-1-9-90-98-dsm-chrome-polished-exhaust-valve-31_5mm-head-1mm-set-8-gsc-power-division.jpg?v=1767419827","url":"https:\/\/www.blackopsautoworks.com\/products\/gsc-p-d-4g63t-evo-1-9-90-98-dsm-chrome-polished-exhaust-valve-31-5mm-head-1mm-set-8","provider":"Black Ops Auto Works","version":"1.0","type":"link"}