Granatelli Motor Sports LT1/LT4/LT5 Drive-By-Wire Billet Throttle Body Black GMTBLT4B

Granatelli LT1 LT4 LT5 Drive-By-Wire Throttle Body Black

SKU: GMTBLT4B

TUNE MAY BE REQUIRED

Elevate your LT1, LT4, or LT5 engine's performance with the Granatelli Motor Sports GMTBLT4B 103mm throttle body. Precision CNC-machined from billet 6061-T6 aluminum, this throttle body is engineered to maximize airflow and enhance throttle response, delivering significant performance gains.

Drive-By-Wire Throttle Body Key Features:

• Increased Airflow: 103mm diameter outflows OEM units, enhancing engine efficiency.

• Durable Construction: CNC-machined from high-grade 6061-T6 billet aluminum.

• Plug-and-Play Installation: Utilizes late-model GM 6-pin connector; no need to transfer components from the original unit.

• Boost Capable: Electronic motors can handle up to 25 lbs of boost in both draw-through and blow-through configurations.

• Versatile Compatibility: Works with factory or aftermarket intake manifolds.

• Smoother Acceleration: Larger size allows for quicker and more responsive engine acceleration.

Important Notes:

• TUNE MAY BE REQUIRED

• Connector Type: Requires a late-model GM 6-pin connector.

Whether you're chasing tenths at the track or just want snappier throttle response on the street, the Granatelli GMTBLT4B 103mm throttle body delivers. Designed for serious performance builds, this bolt-on upgrade is a must-have for anyone running a high-flow intake, ported heads, or boost. It’s proven to add real horsepower in minutes—no gimmicks, just gains. Built for enthusiasts, by enthusiasts.

Key Features & Benefits

• Application-focused Granatelli Motor Sports design
• Built for dependable performance and service
• Designed for enthusiasts, professional installers, and performance builds

Fitment & Installation

Confirm the part number, vehicle or engine application, dimensions, and supporting components before installation. Modified vehicles may require additional clearance, fabrication, calibration, or related hardware depending on the combination.

Frequently Asked Questions

Why upgrade a throttle body?
A performance throttle body can support increased airflow when the rest of the engine combination can use it.

Will this work on a modified vehicle?
Compatibility depends on the complete vehicle combination. Confirm the listed application and supporting components before installation.

Why Choose Granatelli Motor Sports?

Granatelli Motor Sports develops performance components for real-world street, street/strip, race, and custom applications, with an emphasis on practical performance, dependable construction, and integration into serious automotive builds.

Products received may vary slightly from images due to manufacturing tolerances or supply chain variables.