GM LS Cathedral Port Carburettor Hi Rise Race Single Plane EFI Intake Manifold, Natural Cast Finish 4 Barrell 4150 Square Bore Carburettor Pad

Convert your GM LS engine to allow a 4150 style throttlebody to sit on top of your engine for retro-fit applications with this Aeroflow Performance Hi Rise Race cast intake manifold. This single-plane intake manifold is designed to keep your air and fuel distributiongoing into the engine at a steady and even flow for maximum performance and efficiency. The carburettor-mounting pad is designed to accept aftermarket4150 square-bore throttle bodies or adapter plates for turbocharged applications. Specifically designed to suit GM LS Gen III and IV engines equipped with OE or aftermarket LS1/LS2 cathedral port cylinder heads.

• Fits GM LS1/LS2 Cathedral Port Engines.

• EFI Applications.

• This is designed for GM LS Engines with EFI only. Use AF6040-5005 for NON-EFI applications.

• This intake manifold does not work with factory OEM fuel rails and requires the use of Aeroflow Fuel Rail Kit included (AF6999-5000).

• Requires the use of 14mm short(33.60mm) fuel injectors (SoldSeparately).

• FitsGM LS1/LS2 Engines.

• Single Plane Configuration.

• High Rise Intake Manifold.

• RPM operating range - 2500 to 7000.

• Natural Cast Finish.

•- Intake manifold Flat style gasket (must use Fel Pro 1312-2 or 1312-3).