{"product_id":"gsc-p-d-4g63t-035in-over-oem-chromoly-cnc-spring-seat-for-mitsubishi-set-of-16","title":"GSC P-D 4G63T .035in over OEM Chromoly CNC Spring Seat for Mitsubishi - Set of 16","description":"\u003cp\u003e\u003cstrong\u003eSKU:\u003c\/strong\u003e \u003cspan itemprop=\"sku\"\u003e4041-16\u003c\/span\u003e | \u003cstrong\u003eUPC:\u003c\/strong\u003e GSC4041-16\u003c\/p\u003e\n\n\u003ch4\u003e\u003cstrong\u003eGSC P-D 4G63T .035in over OEM Chromoly CNC Spring Seat for Mitsubishi Eclipse Talon Evo - Set of 16 (1990-2006)\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eGSC Power-Division Chromoly spring seats measure .035 inches taller than OEM for 4G63T engines in high-performance applications. They fit 1990-1999 Mitsubishi Eclipse GST GSX Spyder GST 1990-1994 Eclipse GS 1990-1998 Eagle Talon TSi 1990-1994 Plymouth Laser RS 1991-1992 Galant VR-4 and 2005-2006 Lancer Evolution models. Pairing with upgraded valve springs these seats support extreme RPM levels prevent coil bind and deliver consistent power in boosted setups.\u003c\/p\u003e\n\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eChromoly Steel Construction:\u003c\/strong\u003e 4130 Chromoly material withstands fatigue and high spring pressures in 4G63T turbocharged engines.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCNC Machined Precision:\u003c\/strong\u003e Tight tolerances provide exact seat alignment and valvetrain geometry for reliable valve action.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e.035in Over OEM Height:\u003c\/strong\u003e Matches GSC valve spring kits to ensure proper installed height and clearance in performance builds.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete Set of 16:\u003c\/strong\u003e Covers all intake and exhaust valves with uniform specs across the engine.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDirect Bolt-On Fit:\u003c\/strong\u003e Works with OEM heads on DSM and Evo platforms without modifications.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eProduct Notes\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003ePair with GSC valve springs to achieve peak performance and prevent retainer-to-seal contact.\u003c\/li\u003e\n\u003cli\u003eInspect valve retainers and locks for compatibility before final assembly.\u003c\/li\u003e\n\u003cli\u003eShips in protective foam packaging store in dry conditions.\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\u003eMeasure installed spring height post-assembly to verify .035in offset and preload.\u003c\/li\u003e\n\u003cli\u003eCompatible with OEM or aftermarket retainers use 10-degree locks for secure retention.\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\u003eAll\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 MR\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 RS\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 SE\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\u003eProven in drag racing and time attack with 4G63T engines around the world.\u003c\/li\u003e\n\u003cli\u003eAerospace-grade materials tested for durability beyond 10,000 RPM.\u003c\/li\u003e\n\u003cli\u003eEvery part CNC-machined in-house for precise fit and consistent results.\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 fit my 1995 Eclipse GSX with stock head?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e Yes direct replacements for all 1990-1999 4G63T heads in Eclipse GST GSX covering 7-bolt and 6-bolt setups.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e What material are the spring seats made from?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e 4130 Chromoly steel heat-treated to handle up to 200lbs seat pressure far beyond OEM cast seats.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e Do these come with a warranty and what about installation?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e Covered by GSC lifetime defect warranty professional install recommended to check spring heights and valvetrain setup.\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 Foam-protected box 8in x 6in x 4in\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 1.8 lbs\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"GSC Power Division","offers":[{"title":"Default Title","offer_id":43821076250703,"sku":"GSC4041-16","price":48.96,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1062\/7920\/files\/gsc-p-d-4g63t-_035in-over-oem-chromoly-cnc-spring-seat-for-mitsubishi-set-of-16-gsc-power-division.jpg?v=1767420181","url":"https:\/\/www.blackopsautoworks.com\/products\/gsc-p-d-4g63t-035in-over-oem-chromoly-cnc-spring-seat-for-mitsubishi-set-of-16","provider":"Black Ops Auto Works","version":"1.0","type":"link"}