{"product_id":"wotuphji-fuel-injector-spacer-set-for-ls1-ls6-8pcs-aluminum-spacers-with-high-temp-o-rings-oem-fit","title":"WOTUPHJI Fuel Injector Spacer Set for LS1\/LS6 – 8pcs Aluminum Spacers with High‑Temp O‑Rings, OEM Fit","description":"\u003cp\u003e\u003cstrong\u003eWOTUPHJI Upgrade Fuel Injector Spacer Set is an 8-piece aluminum spacer and O-ring kit that adapts short truck injectors to taller LS1\/LS6 intake manifolds and fuel rails for a secure, leak-resistant fit.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eWhen swapping intake manifolds or installing truck-style injectors into LS1\/LS6 engines, mismatched injector height and rail seating cause alignment issues and fuel leaks. The WOTUPHJI spacer set bridges that gap with precision-machined aluminum sleeves and reinforced rubber O-rings. Built to OEM dimensions (Part# 551371), this kit restores proper injector retention and rail sealing so installations go smoothly and remain reliable under heat and vibration.\u003c\/p\u003e\n\n\u003ch3\u003eHow does the spacer set ensure proper injector alignment?\u003c\/h3\u003e\n\u003cp\u003eThe spacers are machined to exact OEM tolerances so injectors sit at the correct height relative to the intake and fuel rail. Correct spacing prevents lateral stress on injectors and maintains spray pattern and flow consistency.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003ePrecision aluminum sleeves match factory dimensions for LS1\/LS6 intake interfaces\u003c\/li\u003e\n  \u003cli\u003eConsistent wall thickness to center injectors in the bore\u003c\/li\u003e\n  \u003cli\u003ePre-measured length eliminates guesswork during installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill the O-rings and materials resist engine heat and fuel exposure?\u003c\/h3\u003e\n\u003cp\u003eThe kit pairs aircraft-grade aluminum spacers with high-temperature rubber O-rings designed for fuel system service. Materials were chosen for chemical compatibility, thermal resilience, and long-term sealing performance.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHigh-temp rubber O-rings resist hardening and swelling\u003c\/li\u003e\n  \u003cli\u003eAluminum construction avoids corrosion and warping under heat\u003c\/li\u003e\n  \u003cli\u003eReinforced sealing surfaces reduce risk of leaks over time\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat does \"OEM-spec (Part# 551371)\" mean for installation ease?\u003c\/h3\u003e\n\u003cp\u003eOEM-spec indicates the spacers are manufactured to match original factory dimensions, so they fit with stock or aftermarket LS truck injectors and fuel rails without modification. That saves time and reduces the chance of fitment errors.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDirect-fit replacement for compatible LS1\/LS6 and truck injector combinations\u003c\/li\u003e\n  \u003cli\u003eSimplifies swaps — no custom machining or adapters required\u003c\/li\u003e\n  \u003cli\u003eIncludes eight spacers and matched O-rings for complete bank installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow durable and reliable is this kit over long-term use?\u003c\/h3\u003e\n\u003cp\u003eEvery component undergoes quality checks and the set is backed by a one-year guarantee. The combination of tough aluminum sleeves and reinforced O-rings is designed for stable, long-lasting service in normal automotive conditions.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eAircraft-grade aluminum offers strength and heat tolerance\u003c\/li\u003e\n  \u003cli\u003eRubber O-rings engineered for fuel-system longevity\u003c\/li\u003e\n  \u003cli\u003eOne-year backing provides added confidence during break-in and beyond\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? The WOTUPHJI Upgrade Fuel Injector Spacer Set is intended for hands-on mechanics, tuners, and DIY enthusiasts performing intake manifold swaps or fitting LS truck injectors to LS1\/LS6 engines. It suits anyone who needs a precise, reliable spacer and sealing solution without machining or fabrication. If you’re converting injector hardware, restoring factory fitment after an upgrade, or preventing fuel rail leaks caused by height differences, this complete 8-piece kit makes the job straightforward and dependable.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does this kit fit LS1 and LS6 manifolds?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The spacers are manufactured to OEM-spec for LS1\/LS6 intake interfaces and adapt short truck injectors accordingly.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Are O-rings included and fuel-compatible?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The kit includes high-temperature rubber O-rings engineered for fuel-system compatibility and long-term sealing.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"WOTUPHJI","offers":[{"title":"Default Title","offer_id":67593501966521,"sku":"B0F5BHQZCZ","price":58.77,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0822\/3765\/3177\/files\/wotuphji-front-packaging.jpg?v=1790576182","url":"https:\/\/redleafauto.ca\/products\/wotuphji-fuel-injector-spacer-set-for-ls1-ls6-8pcs-aluminum-spacers-with-high-temp-o-rings-oem-fit","provider":"Redleaf Auto","version":"1.0","type":"link"}