Accufab! The ultimate in big bore four barrel EFI performance parts.

Feel the Power
If you would like to switch from a carburetor intake to electronic fuel injection (EFI), Accufab has developed two high flow throttle bodies to meet your needs.

Important
TPS & IAC sensors are included with each throttle body purchase.

Better Air Flow for More Power
The Accufab 4150 flows 1215 CFM and has four 1-3/4" brass throttle plates.

Exceptional Quality
The Accufab 4150 throttle body is made from high quality 6061-T6 billet aluminum and then polished to a mirror finish or anodized black, blue or red. Accufab's quality is second to none. Only the best components are used for unparalleled reliability and performance. Manufactured in the USA. The 4150 uses late model GM electronics (TPS and IAC) which are included. The 4150 style comes with progressive linkage. Also, we offer an idle air control block off plate. It's available polished or anodized black, blue or red.

Accessories Included
4150 series throttle body includes a throttle body gasket, throttle position sensor and idle air control sensor with appropriate mounting screws.