{"product_id":"ls-cathedral-port-carburettor-hi-rise-race-single-plane-efi-manifold","title":"LS Cathedral Port Carburettor Hi Rise Race Single Plane EFI Manifold","description":"\u003cdiv\u003e\n\u003ch2\u003eLS Cathedral Port Hi Rise EFI Single Plane Manifold for GM LS1\/LS2 Cathedral Port Heads\u003c\/h2\u003e\n\u003cp\u003eElevate your GM LS engine performance with this Cathedral Port Hi Rise EFI intake manifold. Featuring a natural cast finish and a 4150 square-bore carburettor pad, it’s designed specifically for GM LS1\/LS2 cathedral port heads and EFI applications, delivering focused air and fuel delivery across a wide RPM range.\u003c\/p\u003e \u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eSingle Plane, High Rise configuration for steady air\/fuel distribution from 2500 to 7000 RPM\u003c\/li\u003e \u003cli\u003eCarburettor pad: 4150 square-bore flange\u003c\/li\u003e \u003cli\u003eFits GM LS1\/LS2 Cathedral Port engines; EFI applications only (AF6040-5005 for NON-EFI)\u003c\/li\u003e \u003cli\u003eOverall height from carb pad to bottom: 172 mm (bonnet clearance should be checked)\u003c\/li\u003e \u003cli\u003ePort size: 1.08\" x 2.45\"\u003c\/li\u003e \u003cli\u003eGasket requirement: Fel Pro 1312-2 or 1312-3\u003c\/li\u003e \u003cli\u003eCarburettor studs: 5\/16-18\" x 4\u003c\/li\u003e \u003cli\u003eFuel rail mounting: 4 M6 x 1.00 mm mounting holes for fuel rails\u003c\/li\u003e \u003cli\u003eIncludes intake manifold hardware: 10 x M6 x 1.00 mm hex screws (50 mm UHL) and 10 x flat washers\u003c\/li\u003e \u003cli\u003eNote: Not compatible with factory OEM fuel rails; Aeroflow Fuel Rail Kit AF6999-5000 included\u003c\/li\u003e \u003cli\u003eInjector requirement: uses 14 mm short injectors (33.60 mm) — sold separately\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhat’s Included\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eIntake manifold (Natural Cast Finish) with 10 x M6 x 1.00 mm hex screws (50 mm UHL) and 10 x M6 flat washers\u003c\/li\u003e \u003cli\u003eFuel Rail Kit includes: \u003cul\u003e \u003cli\u003e2 x Fuel Rails (-8ORB)\u003c\/li\u003e \u003cli\u003e1 x -8AN crossover 100 series braided line and two 90 degree non full flow taper fittings\u003c\/li\u003e \u003cli\u003e3 x -8AN to -8ORB fittings\u003c\/li\u003e \u003cli\u003e1 x -8ORB hex port plug\u003c\/li\u003e \u003cli\u003e4 x mounting brackets\u003c\/li\u003e \u003cli\u003e6 x M6 x 1.00 mm socket cap screws (25 mm UHL)\u003c\/li\u003e \u003cli\u003e6 x M6 x 1.00 mm hex screws (12 mm UHL)\u003c\/li\u003e \u003cli\u003e4 x M6 nuts\u003c\/li\u003e \u003c\/ul\u003e \u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eDesigned to keep air and fuel flowing smoothly into GM LS Gen III and IV engines equipped with OE or aftermarket LS1\/LS2 cathedral port heads, this Hi Rise Race intake is tailored for turbocharged and high-performance EFI setups. It enables a retrofit path for a 4150-style throttle body when paired with the included Aeroflow Rail Kit, delivering a cohesive, race-ready EFI solution without guessing on compatibility.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"My Store","offers":[{"title":"Default Title","offer_id":47273469051050,"sku":"AF6050-5001","price":868.3,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/7829\/4698\/files\/s-l1600_3e60d0cb-d90a-4f01-acf1-7f3517d18ea3.webp?v=1753663755","url":"https:\/\/tgmperformance.com.au\/products\/ls-cathedral-port-carburettor-hi-rise-race-single-plane-efi-manifold","provider":"TGM Performance Parts","version":"1.0","type":"link"}