{"product_id":"supertech-sevi-1050-8-fa20-inconel-exhaust-valves","title":"Supertech Inconel Exhaust Valves (Set of 8) – Subaru FA20 \/ Toyota 86 \/ BRZ \/ FR-S","description":"\u003cp\u003e\u003cstrong\u003eFits:\u003c\/strong\u003e Subaru FA20 engines – Toyota 86 \/ GT86 (ZN6, 2012–2021), Subaru BRZ (ZC6, 2012–2020) and Scion FR-S. Standard head size. Fitment on the FA24 (GR86 \/ 2022+ BRZ) isn't confirmed, so contact us before ordering for those.\u003c\/p\u003e\n\u003cp\u003eSupertech Inconel exhaust valves are made for extreme heat. Inconel holds its strength at the high exhaust temperatures seen in turbo and high-boost FA20 builds, where a factory valve is at risk. A common upgrade during a head rebuild alongside upgraded springs and guides.\u003c\/p\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSupertech\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSEVI-1050-8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eInconel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHead diameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e29.00mm (standard)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStem diameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5.45mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLength\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e95.15mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eQuantity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSet of 8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cp\u003e\u003cstrong\u003eAlso needed:\u003c\/strong\u003e fitting and lapping by a qualified engine machinist. Check valve-to-guide clearance and confirm dimensions against your head before fitting. Pair with the \u003ca href=\"\/products\/supertech-sivn-1050-8-fa20-black-nitrided-intake-valves\"\u003eSupertech intake valves\u003c\/a\u003e, \u003ca href=\"\/products\/gsc-3105-8-fa20-stopper-exhaust-valve-guides\"\u003eGSC exhaust valve guides\u003c\/a\u003e and \u003ca href=\"\/products\/gsc-5256-fa20-dual-valve-spring-kit\"\u003eGSC dual valve springs\u003c\/a\u003e.\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\u003eWhy Inconel for the exhaust side?\u003c\/strong\u003e\u003cbr\u003eExhaust valves run much hotter than intakes, especially on boost. Inconel keeps its strength at high temperatures.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAre these standard size?\u003c\/strong\u003e\u003cbr\u003eYes. They have a standard 29mm head, so they suit a standard head without oversize seat work.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDo I need new guides and springs?\u003c\/strong\u003e\u003cbr\u003eOn a head rebuild it's recommended. See the GSC guides and spring kit linked above.\u003c\/p\u003e","brand":"Supertech","offers":[{"title":"Set of 8","offer_id":68016380281062,"sku":"SEVI-1050-8","price":609.99,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/7541\/7574\/files\/sptSEVI-1050-8.webp?v=1794490358","url":"https:\/\/boostedengineering.com.au\/products\/supertech-sevi-1050-8-fa20-inconel-exhaust-valves","provider":"Boosted Engineering","version":"1.0","type":"link"}