{"product_id":"gm-ls-rectangle-port-carburettor-street-single-plane-intake-manifold-black","title":"GM LS Rectangle Port Carburettor Street Single Plane Intake Manifold Black","description":"\u003cdiv\u003e\n\u003ch2\u003eGM LS Rectangle Port Carburettor Street Single Plane Intake Manifold - Black\u003c\/h2\u003e\n\u003cp\u003eConvert your GM LS engine from EFI to a non-EFI carburettor with Aeroflow Performance’s Street low-rise cast intake manifold. Designed for retro-fit applications, this street-ready, single-plane manifold delivers a precise, high-velocity air and fuel flow that enhances throttle response and mid-to-high RPM performance while keeping installation straightforward.\u003c\/p\u003e\n\u003cp\u003eBuilt to suit GM LS Gen III and IV engines that use OE or aftermarket LS3 rectangle port cylinder heads, the non-EFI configuration accepts aftermarket 4150 square-bore carburettors with either manual or electric choke options. The black finish provides a clean, professional look that complements modern builds and classic hot rods alike.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eSingle-plane configuration for rapid throttle response and strong mid-range torque\u003c\/li\u003e \u003cli\u003e4-barrel 4150 square-bore carburettor pad\u003c\/li\u003e \u003cli\u003eRectangle port carburettor compatibility (LS3\/L98 rectangle port heads)\u003c\/li\u003e \u003cli\u003eRPM operating range: 2500–7000\u003c\/li\u003e \u003cli\u003eBlack finish for a sleek, versatile appearance\u003c\/li\u003e \u003cli\u003eDesigned for EFI-to-carburettor retrofits with street performance in mind\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eCarburettor pad: 4150 flange (square bore)\u003c\/li\u003e \u003cli\u003eOverall height (carb pad to bottom): 122 mm (check bonnet clearance)\u003c\/li\u003e \u003cli\u003ePort size: 1.15\" x 2.50\"\u003c\/li\u003e \u003cli\u003e6 x 5\/16-18\" mounting holes\u003c\/li\u003e \u003cli\u003e5\/16-18\" carburettor studs: 4\u003c\/li\u003e \u003cli\u003e3\/8\" NPT port: 1\u003c\/li\u003e \u003cli\u003eO-Ring gasket: AF6233-5002\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhat’s Included\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e8 x Intake Manifold O-Ring Gaskets (AF6233-5002)\u003c\/li\u003e \u003cli\u003e4 x M6 x 1.00mm Hex Screws (80 mm UHL)\u003c\/li\u003e \u003cli\u003e6 x M6 x 1.00mm Hex Screws (50 mm UHL)\u003c\/li\u003e \u003cli\u003e10 x M6 Flat Washers\u003c\/li\u003e \u003cli\u003e1 x 3\/8\" NPT Steel Port Plug\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCompatibility \u0026amp; Applications\u003c\/h3\u003e\n\u003cp\u003eSpecifically designed to fit GM LS Gen III and Gen IV engines with either OE or aftermarket LS3 rectangle port heads. This manifold is intended for carburetted applications and is ideal for street machines, retrofitted builds, and performance-minded enthusiasts seeking reliable non-EFI carburation on GM LS engines.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"My Store","offers":[{"title":"Default Title","offer_id":47273570468010,"sku":"AF6240-6000","price":539.5,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/7829\/4698\/files\/s-l1600_1_0a4b50fe-70bd-4bcb-9dc9-fdb19d8f16e5.webp?v=1753664208","url":"https:\/\/tgmperformance.com.au\/products\/gm-ls-rectangle-port-carburettor-street-single-plane-intake-manifold-black","provider":"TGM Performance Parts","version":"1.0","type":"link"}