{"product_id":"aluminum-intake-manifold-for-ls-swap-cathedral-port-carburetor-conversion","title":"Aluminum Intake Manifold for LS Swap – Cathedral Port","description":"\u003cp\u003e \u003c\/p\u003e\n\u003ch1\u003eAluminum Intake Manifold – LS Swap Carburetor Conversion, Cathedral Port\u003c\/h1\u003e\n\u003cp\u003eUpgrade your GM LS engine with this high-performance \u003cstrong\u003eAluminum Intake Manifold\u003c\/strong\u003e, designed to convert compatible LS-style engines from factory-style fuel injection to a 4-barrel carburetor or EFI throttle body setup. Featuring a polished aluminum finish and a mid-rise single-plane design, this LS swap intake manifold is ideal for classic cars, trucks, hot rods, muscle cars, and custom engine builds.\u003c\/p\u003e\n\u003cp\u003eDesigned specifically for GM LS engines with \u003cstrong\u003ecathedral port cylinder heads\u003c\/strong\u003e, this manifold fits popular 4.8L, 5.3L, 5.7L, and 6.0L applications. The 4150\/4160 square-bore flange provides compatibility with popular 4-barrel carburetors and compatible EFI throttle bodies.\u003c\/p\u003e\n\u003cp\u003eThe mid-rise single-plane intake design is engineered to provide efficient airflow and fuel distribution across the LS engine's operating range. Its polished aluminum construction also gives the engine bay a clean, performance-oriented appearance.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eAluminum Intake Manifold\u003c\/strong\u003e for GM LS-style engines\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDesigned for LS swap and carburetor conversion applications\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCompatible with cathedral port LS cylinder heads\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eFits 4.8L, 5.3L, 5.7L, and 6.0L GM Chevy engines\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMid-rise single-plane intake design\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003ePolished aluminum finish\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eConverts compatible LS engines to 4-barrel carburetor or EFI throttle body\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eAccepts 4150\/4160 square-bore flange\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSupports throttle bores up to 1.750 inches in diameter\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDesigned for performance airflow and fuel distribution\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eEight cast-in runner bosses for nitrous or fuel injector ports\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e0-degree carburetor flange angle\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e3\/8-inch NPT vacuum port\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eIncludes mounting hardware and Viton O-ring gaskets\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eLS Engine Compatibility\u003c\/h2\u003e\n\u003cp\u003eThis \u003cstrong\u003eLS Aluminum Intake Manifold\u003c\/strong\u003e is designed for compatible GM LS-style engines with cathedral port cylinder heads, including:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e4.8L LS\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e5.3L LS\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e5.7L LS\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e6.0L LS\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAlways verify your cylinder-head port configuration and engine application before ordering.\u003c\/p\u003e\n\u003ch2\u003eCarburetor \u0026amp; EFI Conversion\u003c\/h2\u003e\n\u003cp\u003eThis LS Swap Intake Manifold provides a practical solution for converting a compatible LS engine to a carbureted setup. The 4150\/4160 square-bore mounting flange accepts compatible 4-barrel carburetors and can also accommodate compatible EFI throttle-body applications.\u003c\/p\u003e\n\u003cp\u003eThis makes the manifold suitable for custom LS swaps where a traditional carburetor setup is preferred over the original electronic fuel-injection configuration.\u003c\/p\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eProduct Type: Aluminum Intake Manifold\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eEngine Family: GM LS\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003ePort Style: Cathedral Port\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDesign: Mid-Rise Single Plane\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMaterial: Aluminum\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eFinish: Polished Aluminum\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCarburetor Flange: 4150\/4160 Square Bore\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMaximum Throttle Bore: 1.750 inches\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003ePort Dimensions: 0.919 in. W × 2.700 in. H\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCarb Pad Height: 4.950 inches\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCarburetor Flange Angle: 0°\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eVacuum Port: 3\/8 in. NPT\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eRunner Bosses: 8\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWhat's Included\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e6 × M6-1 × 88.91 UHL zinc-plated mounting bolts\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e4 × M6-1 × 64.65 UHL zinc-plated mounting bolts\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e10 × 6mm zinc-plated flat washers\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e1 × 3\/8 in. NPT pipe plug\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e8 × Viton O-ring cylinder-head mounting flange gaskets\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWhy Choose This Aluminum Intake Manifold?\u003c\/h2\u003e\n\u003cp\u003eA properly matched \u003cstrong\u003eAluminum Intake Manifold\u003c\/strong\u003e can make an LS engine conversion significantly easier when building a custom carbureted or EFI performance setup. This mid-rise single-plane design combines LS cathedral-port compatibility with a conventional 4150\/4160 square-bore flange.\u003c\/p\u003e\n\u003cp\u003eThe polished aluminum finish adds a classic performance appearance, while the integrated runner bosses provide additional flexibility for compatible fuel-injection or nitrous applications.\u003c\/p\u003e\n\u003cp\u003eWhether you're building an LS-powered hot rod, classic truck, muscle car, street machine, or custom project, this \u003cstrong\u003eLS Swap Intake Manifold\u003c\/strong\u003e provides a versatile foundation for a carburetor conversion or compatible EFI throttle-body setup.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat engines does this Aluminum Intake Manifold fit?\u003c\/h3\u003e\n\u003cp\u003eIt is designed for compatible 4.8L, 5.3L, 5.7L, and 6.0L GM LS-style engines with cathedral port cylinder heads.\u003c\/p\u003e\n\u003ch3\u003eCan this intake convert an LS engine to a carburetor?\u003c\/h3\u003e\n\u003cp\u003eYes. The manifold is designed to convert compatible LS engines to a 4-barrel carburetor setup using a 4150\/4160 square-bore flange.\u003c\/p\u003e\n\u003ch3\u003eCan it be used with EFI?\u003c\/h3\u003e\n\u003cp\u003eYes. It can also be used with a compatible EFI throttle body, provided the throttle body matches the manifold's square-bore flange and dimensions.\u003c\/p\u003e\n\u003ch3\u003eIs this intake for cathedral port or rectangle port LS heads?\u003c\/h3\u003e\n\u003cp\u003eThis Aluminum Intake Manifold is designed for \u003cstrong\u003ecathedral port LS cylinder heads\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eWhat carburetors does it accept?\u003c\/h3\u003e\n\u003cp\u003eThe manifold features a 4150\/4160 square-bore mounting flange for compatible 4-barrel carburetors.\u003c\/p\u003e\n\u003ch3\u003eWhat type of intake design is this?\u003c\/h3\u003e\n\u003cp\u003eIt features a \u003cstrong\u003emid-rise single-plane\u003c\/strong\u003e design intended to provide efficient airflow and fuel distribution for performance applications.\u003c\/p\u003e\n\u003ch3\u003eDoes the manifold include gaskets and hardware?\u003c\/h3\u003e\n\u003cp\u003eYes. The package includes Viton O-ring cylinder-head mounting flange gaskets, mounting bolts, washers, and a 3\/8-inch NPT pipe plug.\u003c\/p\u003e\n\u003ch3\u003eIs this intake manifold suitable for LS swaps?\u003c\/h3\u003e\n\u003cp\u003eYes. It is specifically suited to compatible LS swap projects where a carbureted or EFI throttle-body configuration is desired.\u003c\/p\u003e\n\u003ch3\u003eWhat should I verify before ordering?\u003c\/h3\u003e\n\u003cp\u003eConfirm that your LS engine has \u003cstrong\u003ecathedral port cylinder heads\u003c\/strong\u003e and that your carburetor or EFI throttle body is compatible with the 4150\/4160 square-bore flange.\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e","brand":"Certified Automotive Experts","offers":[{"title":"Default Title","offer_id":47446254420290,"sku":"086-1P","price":249.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0716\/4664\/2498\/files\/aluminum_intake_manifold.png?v=1786965213","url":"https:\/\/certifiedautomotiveexperts.com\/products\/aluminum-intake-manifold-for-ls-swap-cathedral-port-carburetor-conversion","provider":"Certified Automotive Experts","version":"1.0","type":"link"}