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FAST LSXR 102MM Rect Port Intake Manifold - Black w/ 102MM Big Mouth Billet Throttle Body (Kit)

SKU: FST146102B-KIT

Intake Manifolds, Fuel Injected

FST Intake Manifolds

FAST LSXR 102MM Rect Port Intake Manifold - Black w/ 102MM Big Mouth Billet Throttle Body (Kit)

SKU: FST146102B-KIT

Intake Manifolds, Fuel Injected

FST Intake Manifolds

A$3,238.90
Available from MFR. This item is available from the manufacturer's distribution centre. The dispatch timeframe shown is an estimate based on historical order processing and release times for this part. This item is not held in our own warehouse, and actual dispatch timing may vary depending on manufacturer workload and logistics at the time of ordering.
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Description

IMPORTANT NOTICE: This is a 3-piece unit. Includes a Big Mouth 102 mm throttle body. Must re-use factory o-ring intake seals or purchase seals separately. Drive-by-wire engines can re-use the OEM GM electronic 4-bolt throttle body. Will not fit cathedral port heads.

The engineers at FAST teamed up with the airflow specialists at RHS to develop a 3-piece, polymer intake manifold. They are constructed from a proprietary advanced polymer material that offers a host of benefits over aluminum aftermarket intakes, including lighter weight and improved strength and heat dissipating characteristics. While they feature a 102mm air inlet that is perfectly suited to the FAST Big Mouth 102mm throttle body, they can also be used with stock or aftermarket 90mm or 92mm throttle bodies. Other features include integrated nitrous bungs and perfect bolt-on fitment that allows for the use of factory accessories without modifications or clearance concerns. FAST LSXR intake manifolds' 3-piece modular design allows for easy disassembly and porting. This new design gives you the ability to remove individual runners from the manifold for modification.

Part Type

Engine Intake Manifold Kit

Data: v4.2 - Upd: 2026-09-28 23:58:05

Features

  • The LSXr Intake + Big Mouth 102mm Throttle Body Kit increases horsepower and throttle response thanks to improved manifold flow and a 102mm throttle body boreBillet throttle blade decreases deflection, polymer manifold reduces heatsoak

Specifications

Product Attributes - Brand
FAST
Product Attributes - Manufacturer's Part Number
146102B-KIT
Product Attributes - Part Type
Intake Manifolds, Fuel Injected
Product Attributes - Product Line
FAST LSXR Intake Manifolds
Product Attributes - UPC
00036584399223
Product Attributes - Cylinder Head Configuration
Rectangular Port LS3/L76/L92/L99
Product Attributes - Fuel Injection Style
Multi-port
Product Attributes - Basic Operating RPM Range
1,800-6,000
Product Attributes - Intake Section Included
Complete
Product Attributes - Throttle Body Bore Size
102mm
Product Attributes - Engine Block Deck Height
Standard deck
Product Attributes - Injectors Included
No
Product Attributes - Multi-Port Fuel Rails Included
No
Product Attributes - EGR
Yes
Product Attributes - Aftermarket Fuel Rail Required
No
Product Attributes - Throttle Body Included
Yes
Product Attributes - Supplemental Bosses Cast-In
Yes
Product Attributes - Supplemental Bosses Machined
No
Product Attributes - Supplemental Boss Quantity
Eight
Product Attributes - Runners Included
Yes
Product Attributes - Runners Removable
Yes
Product Attributes - Plenum Material
Plastic
Product Attributes - Plenum Finish
Black
Product Attributes - Base Material
Plastic
Product Attributes - Base Color
Black
Product Attributes - Remanufactured
No
Product Attributes - Quantity
Sold as a kit.
Product Attributes - Notes
This is a 3-piece unit. Includes a Big Mouth 102 mm throttle body. Must re-use factory o-ring intake seals or purchase seals separately. Drive-by-wire engines can re-use the OEM GM electronic 4-bolt throttle body. Will not fit cathedral port heads.

Reference Information

Brand Name/s Fast
StreetFX SKU fst146102B-KIT
SFX Item ID 4085010
Supplier Item Code 4085010
Manufacturer SKU 146102B-KIT
Manufacturer UPC 36584398974
Alternative References fst-30392-8, 102MM

Brochures

Compatibility

Application Data
  • Beginning Year2005
    Ending Year2019
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    Engine Size6.0L/364
    Engine TypeV8
    MakeCHEVROLET
  • Beginning Year2008
    Ending Year2017
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    Engine Size6.2L/376
    Engine TypeV8
    MakeCHEVROLET

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