TSP Velocity 102 mm 4-Bolt LS Throttle Body

TSP Velocity 102 mm 4-Bolt LS Throttle Body


SKU: 81012 Category:


Featuring a CNC-machined aluminum housing, this large throttle body provides maximum airflow for mid to high range horse power engines. Combined with a Top Street Performance fabricated intake manifold, this will give your street or strip car a cosmetic and performance boost guaranteed to turn heads.

Intelligent Design

This billet aluminum throttle body is a great and economical way to increase the overall performance of your LSX engine and the ideal compliment to a fabricated intake manifold from Top Street Performance. The large 102mm bore is guaranteed to supply maximum airflow for a high-horsepower set-up. Features like the progressive throttle pulley, double return spring, and an adjustable throttle stop ensure consistent throttle response and idle control.


Injection Style Multi-port
Throttle Style Drive by Cable
Throttle Body Bore Size 102mm
Throttle Body Bolt Pattern Standard OE 4-Bolt Pattern
Throttle Body Material Billet Aluminum
Venturi Quantity 1
Idle Air Control Motor GM #17113598
Idle Air Control Motor Included No
Throttle Position Sensor GM #17123852
Throttle Position Sensor Included No
Included Mounting Bolts



  • 81001
  • 81002
  • 81002T
  • 81003
  • 81003T


  • Will not fit 92mm intake manifolds


This product is legal for off road use and non pollution controlled vehicles (1965 & older); however, it has not been tested or approved by the California Air Resources Board (CARB) for highway vehicles in the state of California. By purchasing this product, buyer agrees it will not be used on pollution controlled vehicles in California, or in a state with similar emissions regulations.


Part Numbers

Black Anodized 81012BK
Machined Silver 81012