Gm LS Carby Intake Manifold Cathedral Port EFI LS1 LS2 Black Aeroflow - Af6250-5000

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 Street low rise 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 AF6040-5000 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 either 14mm short (33.60mm) fuel injectors or 3/4" length (48.65mm) fuel injectors (SoldSeparately). • FitsGM LS1/LS2 Engines. • Single Plane Configuration. • Low Rise Intake Manifold. • RPM operating range - 2500 to 7000. • Black Finish.