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FAST 304154 Die Cast Four Barrel EFI Throttle Body 1150 CFM 4150 Flange MPI

Manufacturer

Picture for manufacturer FAST

Part Number

304154
12 reviews
Sale Price

$619.95

1 left at this price

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Usually delivered within 2 days

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Product Details

The FAST 304154 Die Cast Four Barrel Throttle Body is a precision-cast, high-flow EFI throttle body engineered for multi-port injection (MPI) applications running a 4150-style square bore flange. Rated at 1150 CFM, it delivers the airflow needed to support serious power levels while integrating seamlessly into EFI-equipped builds.

Constructed from cast aluminum with a black powdercoat finish, this throttle body ships ready to install with built-in EFI sensors already included. Tapered and radiused throttle bores combined with precisely machined progressive linkage deliver smooth, linear throttle response from idle to wide-open throttle.

Key Features:

  • Rated at 1150 CFM for exceptional airflow and power potential
  • Designed for multi-port EFI (MPI) manifolds with standard 4150-style square bore flange mount
  • Includes built-in TPS (Throttle Position Sensor), IAC (Idle Air Control) motor, and IAT (Intake Air Temperature) sensor — accepts cost-effective late-model GM sensors
  • MAP sensor provision included for added tuning flexibility
  • Holley-style linkage for universal compatibility with aftermarket manifolds
  • Throttle cable and transmission kickdown cable mounting options
  • Sealed needle bearings on throttle shafts for precise, long-lasting throttle operation
  • Built-in vacuum ports for easy accessory hookup
  • Made in the USA

The FAST 304154 is the ideal bolt-on throttle body upgrade for performance EFI conversions and high-output engine builds, offering clean installation, broad sensor compatibility, and the airflow capacity to complement a serious street or race combination.

Products specifications

Mounting Flange Style

4150

C.A.R.B. Exempt?

No

Prop 65

WARNING: Cancer and Reproductive Harm P65Warnings.ca.gov

Great experience...price was unbeatable and customer service was very responsive.

Easy to navigate web site

Order confirmation was unclear. It did not provide the carrier or a tracking number that was recognized by USPS, UPS, of FedEx. Used contact form on website to request clarification, but received no reply. Order took a little longer than expected to ship,

Awesome. Simple. Easy.

great site as long as my part gets to me thank you

Wish you had my other Item, MA29038 Thanks

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Good, lower price.

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Unbelievable price!Fast shipping and a great product.Thank You.

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