Nick Williams 103mm Throttle Body – LT1 / LT4

Nick Williams 103mm Drive-By-Wire Throttle Body, designed for LT1 and LT4 engine applications. Precision CNC-machined from billet aluminum, this high-flow throttle body delivers increased airflow, improved throttle response, and supports high-horsepower naturally aspirated, supercharged, and turbocharged builds. It’s a popular choice for performance enthusiasts running aftermarket intake manifolds and supercharger systems.

This throttle body was used for only a few hours of testing and is in excellent, like-new condition. It functions perfectly and is being removed only to upgrade to a 120mm throttle body.

Condition: Used – like new. Only a few hours of testing.

Part Number: Nick Williams NW-103-LT (103mm Drive-By-Wire Throttle Body).

Compatible Replacement Part Numbers: Katech 103mm Throttle Body, Holley EFI 103mm Throttle Body, FAST 103mm Throttle Body, OEM GM LT5 95mm Throttle Body (12740728).

Fits: 2014–2019 Chevrolet Corvette Stingray (LT1), 2015–2019 Corvette Z06 (LT4), 2016–2024 Chevrolet Camaro SS (LT1), 2017–2024 Camaro ZL1 (LT4), 2019–2025 Silverado/Sierra 6.2L (L87), and other Gen V LT1/LT4 applications using a compatible 103mm intake manifold.

Please verify compatibility with your intake manifold, tuning requirements, and engine combination before purchasing.