{"product_id":"supertech-toyota-20v-manganese-bronze-intake-valve-guide-5mm-stem-set-of-12","title":"Supertech Toyota 20V Manganese Bronze Intake Valve Guide 5mm Stem - Set of 12","description":"\u003cp\u003e\u003cstrong\u003eSKU:\u003c\/strong\u003e \u003cspan itemprop=\"sku\"\u003eGDE-T20V-I-12\u003c\/span\u003e | \u003cstrong\u003eUPC:\u003c\/strong\u003e 01037721245231\u003c\/p\u003e\n\n\u003ch4\u003e\u003cstrong\u003eSupertech Toyota 4A-GE 20V Manganese Bronze Intake Valve Guide 5mm Stem - Set of 12\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eSupertech manganese bronze intake valve guides support high-performance Toyota 4A-GE 20V engines found in AE92 and AE101 Corolla Levin and Trueno models. This set of 12 replaces stock guides with material that handles extreme heat and revs for reliable valvetrain operation. Ideal for race builds and daily drivers seeking extended guide life.\u003c\/p\u003e\n\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eManganese Bronze Construction:\u003c\/strong\u003e Delivers high thermal conductivity and resistance to wear for longer service in high-heat conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e5mm Stem Design:\u003c\/strong\u003e Matches Supertech and OEM 5mm intake valves for exact fit in 4A-GE 20V cylinder heads.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision Machined Tolerances:\u003c\/strong\u003e Ensures leak-free sealing and smooth valve action to maintain power output.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete Set of 12:\u003c\/strong\u003e Covers all intake positions on 4-cylinder 20-valve engines with 3 intake valves per cylinder.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Performance Durability:\u003c\/strong\u003e Engineered for motorsport use with better galling resistance than cast iron guides.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eProduct Notes\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eFor intake valves only, exhaust guides sold separately.\u003c\/li\u003e\n\u003cli\u003eDirect replacement for OEM part numbers in 4A-GE 20V Silvertop and Blacktop heads.\u003c\/li\u003e\n\u003cli\u003eHandle as precision components to avoid damage during storage.\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\u003eRemove old guides with puller tool and press new guides using dedicated driver set.\u003c\/li\u003e\n\u003cli\u003eCompatible with stock and ported 4A-GE 20V cylinder heads, no head modification 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\u003e1987-1991\u003c\/td\u003e\n\u003ctd\u003eToyota\u003c\/td\u003e\n\u003ctd\u003eCorolla\u003c\/td\u003e\n\u003ctd\u003eLevin\/Trueno AE92 4A-GE 20V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1991-1995\u003c\/td\u003e\n\u003ctd\u003eToyota\u003c\/td\u003e\n\u003ctd\u003eCorolla\u003c\/td\u003e\n\u003ctd\u003eLevin\/Trueno AE101 4A-GE 20V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch4\u003eWhy Choose Supertech?\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eProven in professional racing series worldwide.\u003c\/li\u003e\n\u003cli\u003eAdvanced materials tested for extreme valvetrain demands.\u003c\/li\u003e\n\u003cli\u003eCNC-machined for consistent quality and fitment.\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 this fit my AE92 4A-GE 20V Silvertop engine?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e Yes, designed for both Silvertop and Blacktop 4A-GE 20V heads in AE92 and AE101 chassis.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e What makes manganese bronze better than stock guides?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e Manganese bronze offers superior heat dissipation and wear resistance for high-RPM operation without galling.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e Is special lapping needed after installation?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e No, precision honing ensures immediate valve-to-guide clearance, but verify with dial bore gauge.\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\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 5 x 3 x 1 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.35 lbs\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Supertech","offers":[{"title":"Default Title","offer_id":44365597704271,"sku":"SPTGDE-T20V-I-12","price":146.21,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1062\/7920\/files\/supertech-toyota-20v-manganese-bronze-intake-valve-guide.png?v=1770417348","url":"https:\/\/www.blackopsautoworks.com\/products\/supertech-toyota-20v-manganese-bronze-intake-valve-guide-5mm-stem-set-of-12","provider":"Black Ops Auto Works","version":"1.0","type":"link"}