{"product_id":"supertech-toyota-4age-20v-exhaust-valve-springs-set-of-20","title":"Supertech Toyota 4AGE 20v Exhaust Valve Springs - Set of 20","description":"\u003cp\u003eSupertech Toyota 4AGE 20v Exhaust Valve Springs - Set of 20 \u003c\/p\u003e\u003cp\u003eSupertech single valve springs for the Toyota 4AGE 20V are manufactured from premium Superclean chrome-silicon-vanadium steel and computer-designed for optimal wire stress and controlled harmonics. This delivers precise valve control, resistance to valve float and durability under aggressive cam profiles and high-RPM operation.\u003c\/p\u003e\u003cp\u003eThe single-spring design is a lightweight, straightforward upgrade for moderate cam and RPM increases. Each spring is matched to Supertech retainers, locks and seat locators, and should be installed to the verified installed height with coil-bind clearance checked for the Toyota 4AGE 20V.\u003c\/p\u003e\u003ch3\u003eKEY FEATURES\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eSuperclean chrome-silicon-vanadium steel, computer-designed for controlled harmonics\u003c\/li\u003e\n\u003cli\u003e6.70lbs\/mm spring rate\u003c\/li\u003e\n\u003cli\u003e46mm free length\u003c\/li\u003e\n\u003cli\u003e14.40mm outer-spring ID\u003c\/li\u003e\n\u003cli\u003eSingle inner-spring OD\u003c\/li\u003e\n\u003cli\u003eSingle inner-spring ID\u003c\/li\u003e\n\u003cli\u003eCoil bind at 23.00mm\u003c\/li\u003e\n\u003cli\u003eSold as a set of 20\u003c\/li\u003e\n\u003cli\u003eDirect-fit for the Toyota 4AGE 20V\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eAPPLICATIONS\u003c\/h3\u003e\u003cp\u003eRecommended for Toyota 4AGE 20V builds running aggressive cams, raised RPM ceilings or forced induction. Pair with matched Supertech titanium or steel retainers, valve locks and seat locators for a complete valvetrain package.\u003c\/p\u003e","brand":"Supertech","offers":[{"title":"Default Title","offer_id":67661995475043,"sku":"sptSPR-A2095-20","price":527.15,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0253\/8848\/2659\/files\/sptSPR-A2095-20.jpg?v=1791418882","url":"https:\/\/www.speedscience.co.nz\/products\/supertech-toyota-4age-20v-exhaust-valve-springs-set-of-20","provider":"Speed Science","version":"1.0","type":"link"}