Convert your GM LS engine from EFI to Non-EFI carburetor in retrofit applications with this Aeroflow Performance Street low rise cast intake manifold. This single-plane intake manifold is designed to keep your air and fuel distribution going into the engine at a steady and even flow for maximum performance and efficiency. The carburetor-mounting pad is designed to accept aftermarket4150 square-bore carburetors with either manual or electric choke options available on today’s market. Specifically designed to suit GM LS Gen III and IV engines equipped with OE or aftermarket LS3 rectangle port cylinder heads. This product is intended for carbureted, throttle body EFI, or port EFI applications.
• Fits GM LS3 Rectangle Port Engines.
• Non-EFI Applications.
• Fits GM LS3 Engines.
• Single Plane Configuration.
• RPM operating range - 2500 to 7000.
• Natural Cast Finish.
Manifold Specifications
- Square bore carburetor pad (4150 Flange)
- Overall height (Carb pad to bottom of manifold) is 122mm (Ensure to Check Bonnet Clearance)
- Port Size: 1.15" x 2.50"
- Intake manifold gasket O-Ring (AF6233-5002).
- 5/16-18" carburetor studs (x4)
- 3/8" NPT port (x1)
- 6 x 5/16-18" Mounting Holes.
Intake Manifold Includes
- 8 x Intake Manifold O-Ring Gaskets (AF6233-5002)
- 4 x M6 x 1.00mm Hex Screws (80mm UHL)
- 6 x M6 x 1.00mm (50m UHL)
- 10 x M6 Flat Washers
- 1 x 3/8" NPT Steel Port Plug