Accufab 4B-4150INJ Four Barrel 4150 Throttle Body with Fuel Rails

Built to order — 2–4 day lead time.

The Accufab 4B-4150INJ combines a four-barrel 4150 throttle body with integrated fuel rails for fuel-injection conversions using a compatible carbureted manifold.

Features

• Black anodized 6061-T6 billet aluminum construction.
• 1,215 CFM airflow with four 1-3/4-inch brass throttle plates.
• Progressive linkage and a 4150 mounting pattern measuring 5.1875 × 5.625 inches.
• Body height: 2 inches; 2.5 inches with linkage extended.

Included

Throttle body, integrated fuel rails, late-model GM TPS and IAC, 4150 gasket, sensor screws and one vacuum pipe.

Fitment

Designed for compatible Siemens Deka shortie injectors. Fuel injectors are sold separately. Confirm manifold clearance, injector sizing, ECU wiring and sensor compatibility for your setup. This is a throttle body and rail assembly, not a complete EFI management system.

For off-road/racing applications. Manufacturer part number: 4B-4150INJ.