The Black Fast Big Mouth 102mm throttle body provides increased airflow through a smoother offset blade pivot. In addition we increased blade thickness to eliminate deflection and a beefed up linkage and spring mechanism.
Designed to maximize performance upgrades on all GM Gen III and Gen IV engines with cable driven throttle bodies, the FAST 102mm Big Mouth Throttle Body without TPS and IAC is now available with an anodized black finish. FAST knows that increased airflow is a key ingredient to increasing your engine performance. With an opening nearly 40% larger than stock, the FAST 102mm Big Mouth Throttle Body is ideal for use with the FAST LSXR, LSXRT and LSXHR intake manifolds, as well as any other manifold with a 102mm or larger inlet. The FAST throttle body offers increased throttle blade thickness to eliminate deflection commonly found with other throttle bodies, especially those in boosted applications. A smoother operating offset blade pivot improves throttle response, and a beefed up linkage with dual throttle spring mechanism ensures total throttle control. What more, FAST invested significant testing and engineering resources into optimizing cross-sectional flow and eliminating airflow turbulence, especially at part-throttle operation.
  • The Black Fast Big Mouth 102mm throttle body provides increased airflow through a smoother offset blade pivotIn addition we increased blade thickness to eliminate deflection and a beefed up linkage and spring mechanism

Information:

Available without sensors in original finish under 54102.

Application Summary:

Year Make/Model
GM LS
Attributes
California Proposition 65 Yes
Country of Origin (Primary) US
Emission Code Not in CA
Gaskets Included No
Hardware Included Yes
Harmonized Tariff Code (Schedule B) 8409914000
Hazardous Material Code N
IAC Motor Included No
Injectors Included No
Life Cycle Status Code Available to Order
NAFTA Preference Criterion Code B
SDR Required Flag N
SDS Sheet Number N/A
Throttle Body Finish Black Anodize
Throttle Body Material Billet Aluminum
Throttle Body Style Multi-Port Injection, MPI
TPS Sensor Included No
Venturi Diameter 102
Venturi Quantity 1
Warranty Time 12
GTIN 00036584403852

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