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Granatelli Motorsports

Granatelli LT1/LT4/LT5 Drive-By-Wire Billet Throttle Body GMTBLT4

Granatelli LT1/LT4/LT5 Drive-By-Wire Billet Throttle Body GMTBLT4

sku: 8YDF8 | mpn: GMTBLT4
$760.10
$760.10
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14 in stock

Emissions

⚠️ RACING/COMPETITION Use Only

California: Non-compliant parts may be used only on designated closed-course racing vehicles that are never registered for highway use.

Other: Please consult your local statutes and ordinances to ensure compliance with regional emissions standards.

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Granatelli Motorsports 103mm Throttle Body – GMTBLT4

TUNE MAY BE REQUIRED

  • GM DBW LT1/LT4/LT5 Throttle Body – 103MM Drive-By-Wire – Natural Finish Compatible with all 2014–2024 LT 5.3L & 6.2L engines
  • Fits Cadillac, GMC, and Chevrolet
  • CNC-machined for maximum airflow and throttle response. Dyno-tested to deliver +20 RWHP & +17 lb-ft on a near-stock LT1 Camaro.
  • Designed for aftermarket manifolds
  • Use spacer #GMTBLTSPC with factory intake or non-ported supercharger
  • Supports up to 25 lbs of boost
5.3L engines require an aftermarket 6.2L-style intake manifold.

Granatelli Motorsports GMTBLT4 103mm Drive-By-Wire Throttle Body Natural Finish

SKU: GMTBLT4

TUNE MAY BE REQUIRED

Unlock real performance gains with the Granatelli Motorsports GMTBLT4 103mm throttle body. Precision CNC-machined from billet 6061-T6 aluminum, this throttle body is built to maximize airflow, throttle response, and overall engine efficiency. Perfect for serious enthusiasts looking to get more out of their GM LT engine.

Key Features & Performance Highlights:

  • Massive 103mm Bore: Increases airflow for more power and quicker throttle response
  • Dyno-Tested Gains: On a stock 2017 Camaro LT1 (E60, headers, Rotofab CAI, Holley Hi-Ram), switching from the OEM throttle body to the GMTBLT4 delivered +20 RWHP and +17 lb-ft—from 425.9 to 445.7 RWHP, and 376.6 to 393.4 lb-ft torque
  • Designed for Aftermarket Manifolds: Direct bolt-on with most aftermarket intakes
  • Spacer Available for Factory Fitment: Use part #GMTBLTSPC if pairing with a factory intake or non-ported supercharger
  • Supports Boosted Builds: Electronic motors rated for up to 25 lbs of boost (draw or blow-through)
  • Durable Construction: CNC-machined 6061-T6 billet aluminum with natural finish
  • Quick Installation: Includes gasket and hardware; installs in under 20 minutes
  • Vehicle Compatibility: Fits all 2014–2024 GM LT 5.3L & 6.2L engines in Chevrolet, GMC, and Cadillac applications

Important Notes:

  • TUNE MAY BE REQUIRED after installation to achieve optimal performance
  • 5.3L models must use an aftermarket 6.2L-style intake manifold
  • Factory intake or non-ported superchargers require manifold spacer #GMTBLTSPC

Elevate your vehicle's performance with the Granatelli Motorsports GMTBLT4 103mm throttle body. Whether you're aiming for improved throttle response, increased horsepower, or enhanced acceleration, this throttle body is a valuable upgrade for your GM LT engine.

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