{"product_id":"brian-crower-valve-guides-toyota-3sgte-ge-6-0mm-exhaust-quantity-of-8","title":"Brian Crower Toyota 3S-GTE\/GE 6mm Exhaust Valve Guides - 8","description":"\u003ch4\u003eRestore Precise Exhaust Valve Guidance in Toyota 3S Engines\u003c\/h4\u003e\u003cp\u003eBrian Crower BC3937 exhaust valve guides are CNC-machined replacement guides for Toyota 3S-GTE and 3S-GE cylinder heads using 6.0 mm valve stems. Their manganese-silicon-aluminum-bronze alloy is designed for wear resistance, lubrication and stability at elevated engine temperatures.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eBC3937 is made for exhaust-side valve-guide service on applicable Toyota 3S-GTE\/3S-GE engines.\u003c\/li\u003e\n\u003cli\u003e6.0 mm valve-stem application; verify the cylinder head and guide dimensions before machining.\u003c\/li\u003e\n\u003cli\u003eCNC-machined manganese-silicon-aluminum-bronze alloy.\u003c\/li\u003e\n\u003cli\u003eSet of eight guides for the exhaust positions.\u003c\/li\u003e\n\u003cli\u003eDesigned to work with compatible Brian Crower stainless-steel valves.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFitment\u003c\/h4\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eYears\u003c\/th\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eSubmodel \/ requirements\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1991–1995\u003c\/td\u003e\n\u003ctd\u003eToyota\u003c\/td\u003e\n\u003ctd\u003eMR2\u003c\/td\u003e\n\u003ctd\u003eTurbo; 3S-GTE, 6.0 mm exhaust-valve stems\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1988–1992\u003c\/td\u003e\n\u003ctd\u003eToyota\u003c\/td\u003e\n\u003ctd\u003eCelica\u003c\/td\u003e\n\u003ctd\u003eAll Trac; 3S-GTE, 6.0 mm exhaust-valve stems\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1993\u003c\/td\u003e\n\u003ctd\u003eToyota\u003c\/td\u003e\n\u003ctd\u003eCelica\u003c\/td\u003e\n\u003ctd\u003eGTS All Trac; 3S-GTE, 6.0 mm exhaust-valve stems\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003cp\u003eThe BC3937 is an engine and cylinder-head component. Verify the installed head, valve-stem size and machining requirements before relying on vehicle-year fitment.\u003c\/p\u003e\u003ch4\u003eSpecifications\u003c\/h4\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eBrian Crower \/ runBC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer part number\u003c\/td\u003e\n\u003ctd\u003eBC3937\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart type\u003c\/td\u003e\n\u003ctd\u003eExhaust valve guides\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEngine family\u003c\/td\u003e\n\u003ctd\u003eToyota 3S-GTE \/ 3S-GE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eValve-stem application\u003c\/td\u003e\n\u003ctd\u003e6.0 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGuide material\u003c\/td\u003e\n\u003ctd\u003eManganese-silicon-aluminum bronze\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGuide position\u003c\/td\u003e\n\u003ctd\u003eExhaust\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eQuantity\u003c\/td\u003e\n\u003ctd\u003e8 guides\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch4\u003eWhat's Included\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eEight Brian Crower BC3937 exhaust valve guides.\u003c\/li\u003e\n\u003cli\u003eValves, springs, seals and cylinder-head machining are not included in this guide set.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eAbout Brian Crower\u003c\/h4\u003e\u003cp\u003eBrian Crower develops performance engine valvetrain components. Its Toyota 3S engine offerings include valve guides, intake guides, springs and related cylinder-head parts.\u003c\/p\u003e\u003ch4\u003eRelated Parts\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/brian-crower-toyota-3sgte-valve-spring-set-for-use-w-shim-over-bucket-shimless-bucket-set-of-16\"\u003eBrian Crower Toyota 3S-GTE valve spring set\u003c\/a\u003e — verify the specific head and valvetrain build.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/supertech-subaru-ej25-toyota-3sgte-4age-7mgte-6mm-viton-exhaust-valve-stem-seal-set-of-8\"\u003eSupertech 6 mm exhaust valve stem seals, set of 8\u003c\/a\u003e — confirm seal-to-guide compatibility with your engine builder.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFAQ\u003c\/h4\u003e\u003cstrong\u003eWhat is the BC3937?\u003c\/strong\u003e\u003cp\u003eIt is a set of eight 6.0 mm exhaust valve guides for compatible Toyota 3S-GTE\/3S-GE cylinder heads.\u003c\/p\u003e\u003cstrong\u003eIs this for intake or exhaust valves?\u003c\/strong\u003e\u003cp\u003eThis set is intended for exhaust valves. Intake guides are a separate part.\u003c\/p\u003e\u003cstrong\u003eHow many guides come in the package?\u003c\/strong\u003e\u003cp\u003eEight exhaust valve guides are specified.\u003c\/p\u003e\u003cstrong\u003eWhat material are the guides made from?\u003c\/strong\u003e\u003cp\u003eBrian Crower specifies a manganese-silicon-aluminum-bronze alloy.\u003c\/p\u003e\u003cstrong\u003eDoes this fit a Toyota MR2 Turbo?\u003c\/strong\u003e\u003cp\u003eIt is listed for Toyota 3S-GTE applications including the MR2 Turbo; match the installed cylinder-head generation and stem dimensions before ordering.\u003c\/p\u003e\u003cstrong\u003eDoes it fit a Celica All-Trac?\u003c\/strong\u003e\u003cp\u003eIt may suit 3S-GTE All-Trac builds using the specified exhaust-valve configuration; verify the specific head.\u003c\/p\u003e\u003cstrong\u003eCan the guides be installed without machining?\u003c\/strong\u003e\u003cp\u003eProfessional cylinder-head measurement, guide installation and final sizing are recommended; follow the engine builder's tolerances.\u003c\/p\u003e\u003cstrong\u003eAre valves or seals included?\u003c\/strong\u003e\u003cp\u003eNo. This listing is for the exhaust valve-guide set only.\u003c\/p\u003e\u003ch4\u003eInstallation Instructions\u003c\/h4\u003e\u003col\u003e\n\u003cli\u003eConfirm the exact Toyota 3S cylinder head and inspect exhaust valve-stem dimensions.\u003c\/li\u003e\n\u003cli\u003eHave a qualified cylinder-head machine shop measure guide bores and assess wear.\u003c\/li\u003e\n\u003cli\u003eRemove old guides using the correct head-support and temperature-control procedure.\u003c\/li\u003e\n\u003cli\u003eInstall BC3937 guides to the manufacturer's appropriate interference-fit specifications and finish-size the bores as required.\u003c\/li\u003e\n\u003cli\u003eVerify valve-stem clearance, seat alignment, seals and assembled valvetrain before operation.\u003c\/li\u003e\n\u003c\/ol\u003e\u003ch4\u003eCalifornia Proposition 65 Warning\u003c\/h4\u003e\u003cp\u003eWARNING: Cancer and Reproductive Harm — \u003ca href=\"https:\/\/www.P65Warnings.ca.gov\"\u003ewww.P65Warnings.ca.gov\u003c\/a\u003e.\u003c\/p\u003e","brand":"Brian Crower","offers":[{"title":"Default Title","offer_id":67727982821455,"sku":"BRCBC3937","price":81.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1062\/7920\/files\/brian-crower-bc3937-toyota-exhaust-valve-guides.webp?v=1792093481","url":"https:\/\/www.blackopsautoworks.com\/products\/brian-crower-valve-guides-toyota-3sgte-ge-6-0mm-exhaust-quantity-of-8","provider":"Black Ops Auto Works","version":"1.0","type":"link"}