{"product_id":"bevinsee-aluminum-rectangular-port-intake-manifold-adapter-plates-for-ls1-lsa-zl1-cts-v-lsx-series","title":"LS Cathedral-to-Rectangle Port Intake Manifold Adapter Plates (LS1 \/ LSA \/ LSX)","description":"\u003cp\u003eUpgrade your LS build with these billet aluminum rectangular port intake manifold adapter plates, designed to bridge cathedral port cylinder heads to rectangle port intake manifolds, superchargers, or blowers. This setup allows greater flexibility when pairing modern intake systems with earlier LS cylinder head configurations.\u003c\/p\u003e\n\u003cp\u003eMachined from high-strength billet aluminum and finished with a durable anodized coating, these adapters provide precise port alignment, reliable sealing, and long-term durability under high-performance conditions. Ideal for forced-induction or high-output naturally aspirated builds.\u003c\/p\u003e\n\u003ch6\u003eKey Features:\u003c\/h6\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCathedral to Rectangle Port Conversion\u003c\/strong\u003e – Allows rectangle port intakes or superchargers to be used on cathedral port cylinder heads.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBillet Aluminum Construction\u003c\/strong\u003e – Machined from high-strength aluminum for rigidity and thermal stability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision CNC Machining\u003c\/strong\u003e – Ensures accurate port alignment for optimal airflow and performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAnodized Finish\u003c\/strong\u003e – Corrosion-resistant coating for long-term durability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Quality Sealing\u003c\/strong\u003e – Includes premium O-ring seals for leak-free operation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAlignment Pin Clearance\u003c\/strong\u003e – Designed to clear factory alignment pins without modification.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch6\u003eSpecifications:\u003c\/h6\u003e\n\u003cul\u003e\n\u003cli\u003eCondition: New\u003c\/li\u003e\n\u003cli\u003eProduct Type: Intake manifold adapter plates\u003c\/li\u003e\n\u003cli\u003eMaterial: Billet aluminum\u003c\/li\u003e\n\u003cli\u003eFinish: Anodized\u003c\/li\u003e\n\u003cli\u003eThickness: 1\/2 inch\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch6\u003eCompatibility:\u003c\/h6\u003e\n\u003cul\u003e\n\u003cli\u003eCompatible with cathedral port cylinder heads\u003c\/li\u003e\n\u003cli\u003eAdaptable to rectangle port intake manifolds, superchargers, or blowers\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch6\u003eImportant Notes:\u003c\/h6\u003e\n\u003cul\u003e\n\u003cli\u003eNot compatible with raised port LS7 intake designs\u003c\/li\u003e\n\u003cli\u003eSome rectangle port intakes may require minor port matching or polishing\u003c\/li\u003e\n\u003cli\u003eCorrect intake bolt length must be selected based on intake style used\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch6\u003eWhat’s Included:\u003c\/h6\u003e\n\u003cul\u003e\n\u003cli\u003e2x intake manifold adapter plates\u003c\/li\u003e\n\u003cli\u003eO-ring seals\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThese adapter plates are an essential solution for builders looking to expand intake options on cathedral port LS engines while maintaining proper airflow and sealing. Ideal for performance street builds, track cars, or boosted applications.\u003c\/p\u003e","brand":"K2 Industries","offers":[{"title":"Default Title","offer_id":45815602872554,"sku":"1005010578200001","price":189.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0477\/0427\/7142\/files\/S30b5952557284fe6869e13e0e220bac55.webp?v=1776472156","url":"https:\/\/www.k2-industries.com\/en-ch\/products\/bevinsee-aluminum-rectangular-port-intake-manifold-adapter-plates-for-ls1-lsa-zl1-cts-v-lsx-series","provider":"K2 Industries","version":"1.0","type":"link"}