Granatelli GMTBLT4B 103mm DBW Throttle Body for 14-26 GM LT1/LT4/LT5 V8

Regular price: $513.95
Regular price: ~~$700.09~~
Sale price: $513.95

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In Stock: 4

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Product Specification:

SKU:GMSGMTBLT4B

MPN: GMTBLT4B

UPC: 802735039177

Weight: 3.8 lb

Inventory: 4

Type: Throttle Bodies

Vehicle Fitment

2014-2026 Chevrolet Camaro (LT1/LT4/LT5, V8 6.2L)
2014-2026 Chevrolet Corvette (LT1/LT4/LT5, V8 6.2L)
2014-2026 Cadillac Escalade/ESV (LT1/LT4/LT5, V8 6.2L)
2014-2026 Cadillac CT5 (LT1/LT4/LT5, V8 6.2L)
2014-2026 GMC Sierra 1500 (LT1/LT4/LT5, V8 6.2L)
2014-2026 GMC Yukon/Yukon XL (LT1/LT4/LT5, V8 6.2L)

Features

103 mm bore for enhanced airflow vs stock throttle bodies
Drive-by-wire electronic throttle for precise control
CNC-machined billet 6061-T6 aluminum construction
Black finish resists corrosion and adds engine bay style
Plug-and-play with GM 6-pin connector harness
Capable of handling up to ~25 lbs boost in forced induction use
Works with factory and many aftermarket intake manifolds
Improves throttle response and acceleration performance

Specifications

Part Number: GMTBLT4B
Bore Diameter: 103 mm
Material: CNC billet 6061-T6 aluminum
Actuation: Drive-by-wire electronic
Connector: GM late-model 6-pin
Finish: Black anodized/coated
Tuning: May require ECU tune for optimal performance
Boost Capability: Up to ~25 lbs (draw-through/blow-through)

Included Components

1x throttle body assembly
1x intake gasket
1x set of mounting bolts

Product Description

The Granatelli GMTBLT4B 103 mm Drive-By-Wire Throttle Body is a high-performance upgrade designed for GM's LT1, LT4, and LT5 engines found in late-model Chevrolet, GMC, and Cadillac vehicles. By increasing the throttle bore size over the factory unit, this throttle body allows significantly more air into the engine, improving throttle response and acceleration across the RPM range. Precision-machined from billet aluminum and finished in sleek black, it offers both performance gains and visual appeal under the hood.

Installation is straightforward with the included gasket and hardware, and the throttle body is compatible with factory intake manifolds using the OEM GM 6-pin connector. It's suitable for naturally aspirated or forced induction builds and is built to handle higher airflow demands - though a tune is recommended to fully optimize performance. Whether you're upgrading a Camaro, Corvette, Escalade, Sierra, or Yukon with an LT engine, the GMTBLT4B delivers enhanced responsiveness and performance gains for street or track use.