FAST Throttle Body LSX 102MM W/TPS

SKU: FST54103

Throttle Bodies

FST Throttle Bodies

Fast

FAST Throttle Body LSX 102MM W/TPS

SKU: FST54103

Throttle Bodies

FST Throttle Bodies

IN STOCK! Est Ship 3-7 Days days. This item is IN STOCK at one of our warehouses or distribution centres, the ETA is the approximate time required to prepare your order for dispatch.

We accept

Description

These throttle bodies offer 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 and dual throttle spring mechanism ensure total throttle control. Constructed from billet aluminum, the FAST Big Mouth 102mm Throttle Body with TPS and IACis designed to maximize performance upgrades on all Gen III and Gen IV engines with cable driven throttle bodies.

Part Type

Fuel Injection Throttle Body

Data: v4.2 - Upd: 2026-10-08 16:36:27

Features

The 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

Specifications

Product Attributes - Brand: FAST
Product Attributes - Manufacturer's Part Number: 54103
Product Attributes - Part Type: Throttle Bodies
Product Attributes - Product Line: FAST Big Mouth LT Throttle Bodies
Product Attributes - UPC: 036584208136
Product Attributes - Throttle Body Style: Multi-port injection, MPI
Product Attributes - Throttle Body Actuation: Cable
Product Attributes - Venturi Quantity: 1
Product Attributes - Venturi Diameter (mm): 102.00mm
Product Attributes - TPS Sensor Included: Yes
Product Attributes - IAC Motor Included: Yes
Product Attributes - Gaskets Included: No
Product Attributes - Hardware Included: No
Product Attributes - Injectors Included: No
Product Attributes - Throttle Body Material: Billet aluminum
Product Attributes - Throttle Body Finish: Clear anodized
Product Attributes - Remanufactured: No
Product Attributes - Quantity: Sold individually.
Product Attributes - Special Attention: Designed for cable driven applications with intake manifolds that have 102mm openings.

Reference Information

Brand Name/s	Fast
StreetFX SKU	fst54103
SFX Item ID	4084837
Supplier Item Code	4084837
Manufacturer SKU	54103
Manufacturer UPC	36584208136
Alternative References	102MM

Brochures

Compatibility

Application Data

Universal	No
Make	CHEVROLET
Beginning Year	1997
Ending Year	2004
Engine Type	V8
Engine Family	Chevy small block Gen III/IV (LS-based engines)
Engine Size	5.7L/350
Application Notes	Designed for cable driven applications with intake manifolds that have 102mm openings.

Universal	No
Make	CHEVROLET
Beginning Year	1999
Ending Year	2014
Engine Type	V8
Engine Family	Chevy small block Gen III/IV (LS-based engines)
Engine Size	5.3L/325
Application Notes	Designed for cable driven applications with intake manifolds that have 102mm openings.

Universal	No
Make	CHEVROLET
Beginning Year	1999
Ending Year	2017
Engine Type	V8
Engine Family	Chevy small block Gen III/IV (LS-based engines)
Engine Size	4.8L/294
Application Notes	Designed for cable driven applications with intake manifolds that have 102mm openings.

Universal	No
Make	CHEVROLET
Beginning Year	1999
Ending Year	2019
Engine Type	V8
Engine Family	Chevy small block Gen III/IV (LS-based engines)
Engine Size	6.0L/364
Application Notes	Designed for cable driven applications with intake manifolds that have 102mm openings.

Universal	No
Make	CHEVROLET
Beginning Year	2006
Ending Year	2015
Engine Type	V8
Engine Family	Chevy small block Gen III/IV (LS-based engines)
Engine Size	7.0L/427
Application Notes	Designed for cable driven applications with intake manifolds that have 102mm openings.

Universal	No
Make	CHEVROLET
Beginning Year	2008
Ending Year	2017
Engine Type	V8
Engine Family	Chevy small block Gen III/IV (LS-based engines)
Engine Size	6.2L/376
Application Notes	Designed for cable driven applications with intake manifolds that have 102mm openings.