{"product_id":"gsc-5256-fa20-dual-valve-spring-kit","title":"GSC Power-Division Dual Valve Spring Kit with Titanium Retainers – Subaru FA20 (86 \/ BRZ \/ FR-S \/ WRX)","description":"\u003cp\u003e\u003cstrong\u003eFits:\u003c\/strong\u003e Subaru FA20 engines – Toyota 86 \/ GT86 (ZN6), Subaru BRZ (ZC6), Scion FR-S and Subaru WRX FA20F (2015–2021). Fitment on the FA24 (GR86 \/ 2022+ BRZ) isn't confirmed, so contact us before ordering for those.\u003c\/p\u003e\n\u003cp\u003eThe GSC Power-Division dual valve spring kit is a complete spring and retainer upgrade for high-rpm and high-boost FA20 builds. The dual cylindrical springs use the same wire as GSC's beehive kits and are nano-peened for low fatigue loss, so they hold pressure over time.\u003c\/p\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGSC Power-Division\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGSC5256\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInstalled height\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIN 1.299\" \/ EX 1.303\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSeat pressure\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIN 102 lbs \/ EX 100 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOpen pressure\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIN 257 lbs @ 0.846\" \/ EX 256 lbs @ 0.850\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax valve lift\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.453\" (11.5mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCoil bind\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.782\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax RPM \/ boost\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e9,500rpm \/ 50psi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cp\u003e\u003cstrong\u003eWhat's included:\u003c\/strong\u003e 16 dual valve spring sets, 16 titanium retainers and 16 spring seats.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAlso needed:\u003c\/strong\u003e fitting by a qualified engine builder, with installed height checked against your head. We recommend \u003ca href=\"\/products\/kelford-rr-fafb-denstoj-rocker-retainers-for-fa-fb-subaru-engine\"\u003eDenstoj rocker retainers\u003c\/a\u003e on any FA\/FB head build. A tune is required for any cam or rev limit change.\u003c\/p\u003e\n\u003cp\u003eUsually dispatched within 5-14 business days. Fitment advice available. Contact us before ordering.\u003c\/p\u003e\n\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWill these suit aftermarket cams?\u003c\/strong\u003e\u003cbr\u003eThey support up to 11.5mm (0.453\") valve lift. Check your cam's lift is within that.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAre retainers included?\u003c\/strong\u003e\u003cbr\u003eYes. 16 titanium retainers and 16 spring seats are included.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat power and rpm are they good for?\u003c\/strong\u003e\u003cbr\u003eGSC rates them to 9,500rpm and 50psi of boost.\u003c\/p\u003e","brand":"GSC Power-Division","offers":[{"title":"Default Title","offer_id":68016380936422,"sku":"GSC5256","price":887.99,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/7541\/7574\/files\/gsc-power-division-GSC5256-1.png?v=1794490363","url":"https:\/\/boostedengineering.com.au\/products\/gsc-5256-fa20-dual-valve-spring-kit","provider":"Boosted Engineering","version":"1.0","type":"link"}