{"product_id":"vtt-b58-s58-head-port-block-off-kit-or-billet-check-valve-kit","title":"VTT B58\/S58 Head Port Block-Off Kit or Billet check valve kit","description":"\u003ch3\u003eVTT B58\/S58 Head Port Block-Off \/ Built Check Valve Kit\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eVTT B58\/S58 Head Port Block-Off \/ Check Valve Kit\u003c\/strong\u003e is designed to either \u003cstrong\u003eseal off\u003c\/strong\u003e or \u003cstrong\u003econvert\u003c\/strong\u003e the factory head ports used by the OEM low-side PCV system. These ports in the cylinder head utilize engine vacuum to evacuate crankcase gases — but in the process, can allow oil to enter the intake manifold, leading to \u003cstrong\u003evalve carbon buildup\u003c\/strong\u003e and other performance issues over time.\u003c\/p\u003e\n\u003cp\u003eThis kit provides two configuration options:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eBlock-Off Version\u003c\/strong\u003e – Completely seals the factory head ports to prevent oil intrusion and unwanted vacuum leaks.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eBillet Check Valve Version\u003c\/strong\u003e – Converts the head ports into a robust internal PCV system using precision-engineered check valves. These one-way valves allow vacuum to function as intended while \u003cstrong\u003eblocking boost pressure\u003c\/strong\u003e from entering the crankcase or charge tract.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eBy bypassing the factory PCV valve in the valve cover, the VTT kit replaces it with an improved \u003cstrong\u003ethree-valve internal system\u003c\/strong\u003e integrated directly into the cylinder head. This design improves reliability, simplifies plumbing, and ensures consistent crankcase pressure management — critical for both stock and high-performance B58\/S58 applications. This kit does NOT require any tapping, meaning no metal to get into the engine etc. You simply tap the plugs or check valves into place.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eEliminates oil draw-through into the intake manifold\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003ePrevents carbon buildup on intake valves\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eConverts to an internal, head-integrated PCV system\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eUtilizes precision-machined check valves for boost sealing\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eFully reversible — Block-offs or valves can be removed if needed\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003eNo tapping is required. Easy install, by tapping the blocks or valve into place.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eKit Options\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e(3) Head Port Block-Off Plugs \u003cstrong\u003eor Check Valves\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eFitment\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eAll \u003cstrong\u003eBMW B58\/S58 engines\u003c\/strong\u003e, including S58, B58, B58TU, and B58TU2 variants\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eKit Includes\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e(3) Head Port Block-Off Plugs or Check Valves\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e(1) M6 bolt to use as the install tool (simply thread the bolt into the plug, line it up, and tap them into the head. We suggest using a sealer or Lock-Tite)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eDescription\u003c\/h4\u003e\n\u003cp\u003eThe VTT B58\/S58 Head Port Block-Off \/ Check Valve Kit is a precision-engineered solution to one of the S58\/ B58’s most overlooked problems — oil ingestion through the factory vacuum ports. Whether you’re running a stock engine or a high-boost build, this kit ensures your PCV system remains efficient, reliable, and leak-free\u003c\/p\u003e","brand":"Vargas Turbo Technologies","offers":[{"title":"S58 Check Valve kit","offer_id":47878166708380,"sku":"VTT-OCC-S58-Head-Port-Block-Off-Kit-CHECK","price":69.99,"currency_code":"USD","in_stock":true},{"title":"Block off Kit","offer_id":47878166741148,"sku":"VTT-OCC-B58-Head-Port-Block-Off-Kit-BLOCK","price":29.99,"currency_code":"USD","in_stock":true},{"title":"B58 Check Valve Kit","offer_id":47878166773916,"sku":"VTT-OCC-B58-Head-Port-Block-Off-Kit-CHECK","price":69.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0473\/3206\/5436\/files\/IMG_4647.jpg?v=1791771219","url":"https:\/\/daroracing.com\/products\/vtt-b58-s58-head-port-block-off-kit-or-billet-check-valve-kit","provider":"Daro Racing","version":"1.0","type":"link"}