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Nick Williams LT1 / LT4 103mm Throttle Body C7 Corvette (2014-2019)

SKU: SD103LTX
Price
$699.99

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Raw
Currently Backordered - You can still place your order and we'll ship your order as soon as the product is back in stock!

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Installation Services

Don’t worry about the hassle — let our expert team at Forza Motorworks handle the installation for you. Our professional installation ensures everything fits and operates exactly as intended, giving you clean, factory-quality results, proper wiring or mounting, and avoiding the risks of DIY mistakes. You’ll save time, avoid frustration, and get peace of mind knowing the job is done right the first time. Contact us to learn about our installation services and enjoy a seamless upgrade from day one.

FAQ

Shipping Information
For items that are in stock, purchases made after 9am EST will be usually be shipped out in the next 1-2 business days. Please inquire to confirm lead times if you have specific time constraints. Orders will be sent via signature required at our discretion unless otherwise requested.

International Shipping
Any and all customs duties, taxes, import fees, and/or tariffs assessed in connection with the purchase shall be the sole responsibility of the customer/end user.

Return Policy
We have a 30-day return policy, which means you have 30 days after receiving your item to request a return. To be eligible for a return, your item must be in the same condition that you received it, unused and in its original packaging. All returns are subject to a restocking fee based on item and package condition. Buyer is responsible for paying for return shipping costs. If you need a return label, we will email you a return label and deduct cost from refund. Original shipping costs are not refundable. Special order items are not eligible for return.

Cancellation Policy
In order to cancel your order you must email within 24 hours of placing your order or before your order has shipped, whichever occurs first. Special order items are not eligible for cancelation.

Exchange Policy
We have a 30-day exchange policy, which means you have 30 days after receiving your item to request an exchange. To be eligible for an exchange, your item must be brand new in box. Buyer is responsible for paying all shipping costs to exchange product.

Product Description

The Nick Williams 103mm throttle body is a precision-machined high-flow upgrade designed for GM Gen-V LT1 and LT4 drive-by-wire engines, perfect for performance-oriented builds on Corvette, Camaro, CTS-V, and other LT-powered vehicles. CNC-machined from billet aluminum with a black finish, it significantly increases airflow compared to the restrictive factory throttle body, helping improve throttle response, power potential, and engine efficiency when paired with proper supporting mods and a tune. Complete with the integrated stepper motor and electronics, this throttle body is ready for installation with minimal teardown — but requires aftermarket intake compatibility and ECU calibration to unlock full performance benefits.

Fitment Notes

  • Fits 2014+ Gen-V LT1 & LT4 GM engines using electronic drive-by-wire throttle control (e.g., C7/C8 Corvette, Camaro SS/ZL1, Cadillac CTS-V)

  • Requires an aftermarket intake manifold or ported supercharger inlet to accommodate the larger 103 mm blade — not a direct bolt-on to stock manifold or stock LT4 supercharger inlet.

  • Uses the factory 6-pin wiring connector for throttle control; existing harness compatibility retained.

  • Tuning is required after installation to ensure proper drive-by-wire response and avoid faults.

Included

  • Billet aluminum throttle body (103 mm diameter).

  • Electronic drive-by-wire assembly with integrated stepper motor and electronics.

  • Connector plug and harness interface.

  • Hardware kit.

Product Specs

  • Throttle Blade Diameter: 103 mm (oversized for increased airflow).

  • Inlet Bore: ~108 mm outer diameter to smoothly feed the larger blade.

  • Material: CNC-machined billet aluminum with anodized black finish.

  • Throttle Control: Electronic drive-by-wire compatible; OEM connector retained.

  • Calibration: Requires ECU tuning post-installation for safe operation.

  • Finish Options: Black or natural billet aluminum.

Product Features

  • Maximized Airflow: The 103 mm butterfly and large bore dramatically reduce restriction vs stock throttle bodies, supporting higher power builds and improved throttle response.

  • Integrated Electronics: Includes complete stepper motor and sensor package — no need to reuse OEM throttle body guts.

  • Precision CNC Machining: Billet construction and smooth internal flow paths minimize turbulence and promote efficient airflow.

  • Performance-Focused Design: Ideal for vehicles with upgraded intakes, superchargers, or extensive engine modifications.

  • Direct Harness Compatibility: Works with GM Gen-V wiring harness through the stock 6-pin connector.

  • Raw or Black Anodized Finish: Premium look under the hood with enhanced corrosion resistance