{"product_id":"gsc-p-d-nissan-rb26dett-34-65mm-head-std-102-4mm-long-intake-valve-set-of-12","title":"GSC P-D Nissan RB26DETT 34.65mm Head STD 102.4mm Long Intake Valve - Set of 12","description":"\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eGSC Power-Division Intake Valves — Nissan RB26DETT, 34.65mm Head, Standard (2142-12)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eA direct-replacement intake valve set for the RB26, built to GSC's valvetrain spec rather than OEM. GSC develops their valvetrain components using advanced design and flow simulation software backed by real-world testing, which is the reason these show up in built RB heads instead of factory valves.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eSpecs:\u003c\/strong\u003e 34.65mm head diameter, 102.4mm overall length, standard stem size. Set of 12 — one full intake side for an RB26.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eStandard stem and OEM dimensions\u003c\/strong\u003e mean this drops into a stock or freshened head with no guide work and no retainer or spring changes required. That's the distinction from an oversize valve, which needs seat cutting and a valve job to suit.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eWhen you'd want these:\u003c\/strong\u003e a high-RPM RB26 where the factory valves have seen enough heat cycles to be suspect, or a fresh build where you want known-good valvetrain rather than reusing 30-year-old parts. On an engine that lives past 8,000 rpm, valve integrity is not the place to save money.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003ePair with matched springs and retainers.\u003c\/strong\u003e A valve is one piece of a system — if the build is going to see aggressive cams or high RPM, the spring package needs to suit, and GSC builds those to match.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eVerify against your head before ordering.\u003c\/strong\u003e Confirm your current valve length and head diameter, especially if the head has been previously machined or has aftermarket seats.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eExhaust valves are a separate part number\u003c\/strong\u003e — most builds replace both sides at once.\u003c\/p\u003e","brand":"Street Strip Supply","offers":[{"title":"Default Title","offer_id":47282925174957,"sku":null,"price":275.73,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0779\/8105\/7197\/files\/gsc2142-12.jpg?v=1787268266","url":"https:\/\/streetstripsupply.com\/products\/gsc-p-d-nissan-rb26dett-34-65mm-head-std-102-4mm-long-intake-valve-set-of-12","provider":"Street Strip Supply","version":"1.0","type":"link"}