FAST LSXRT Manifold 102MM - Black

SKU: FST146602B

Intake Manifolds, Fuel Injected

FST Intake Manifolds

Fast

FAST LSXRT Manifold 102MM - Black

SKU: FST146602B

Intake Manifolds, Fuel Injected

FST Intake Manifolds

IN STOCK! Est Ship 3-5 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

The LSXRT is constructed from a proprietary precision injection

Part Type

Engine Intake Manifold

Data: v4.2 - Upd: 2026-09-28 23:58:04

Specifications

Product Attributes - EGR: No
Product Attributes - UPC: 036584263647
Product Attributes - Brand: FAST
Product Attributes - Notes: Designed for use with Big Mouth 102mm throttle body but can also be used with stock 90mm or 92mm throttle bodies. 78mm three-bolt throttle bodies require an adapter. May require a taller hood.
Product Attributes - Quantity: Sold individually.
Product Attributes - Emissions: California EO Approved
Product Attributes - Part Type: Intake Manifolds, Fuel Injected
Product Attributes - Base Color: Black
Product Attributes - Product Line: FAST LSXRT Intake Manifolds
Product Attributes - Base Material: Polymer
Product Attributes - Plenum Finish: Black
Product Attributes - Plenum Material: Polymer
Product Attributes - Runners Included: Yes
Product Attributes - CARB EO Number(s): D-279-10
Product Attributes - Runners Removable: Yes
Product Attributes - Injectors Included: No
Product Attributes - Fuel Injection Style: Multi-port
Product Attributes - Throttle Body Included: No
Product Attributes - Intake Section Included: Complete
Product Attributes - Throttle Body Bore Size: 102mm
Product Attributes - Engine Block Deck Height: Standard deck
Product Attributes - Basic Operating RPM Range: 1,800-6,000
Product Attributes - Manufacturer's Part Number: 146602B
Product Attributes - Supplemental Boss Quantity: Eight
Product Attributes - Cylinder Head Configuration: Cathedral Port LS1/LS2/LS6
Product Attributes - Supplemental Bosses Cast-In: Yes
Product Attributes - Supplemental Bosses Machined: No
Product Attributes - Aftermarket Fuel Rail Required: Yes
Product Attributes - Multi-Port Fuel Rails Included: No

Reference Information

Brand Name/s	Fast
StreetFX SKU	fst146602B
SFX Item ID	4084988
Supplier Item Code	4084988
Manufacturer SKU	146602B
Manufacturer UPC	36584263647
Alternative References	102MM

Brochures

Compatibility

Application Data

Application Notes	The use of a taller profile truck manifold in car may require the use of a different throttle body, fuel rails, front drive accessories. Hood clearance may also be a problem for proper fitment.
Beginning Year	2008
CC	5328
CID	325
Ending Year	2009
Engine Family	Chevy small block Gen III/IV (LS-based engines)
Engine Size	5.3L/325
Engine Type	V8
Engine VIN Code	C
Liter	5.3
Make	BUICK
Model	LACROSSE
Submodel	SUPER

Beginning Year 2004
CC 5328
CID 325
Ending Year 2004
Engine Family Chevy small block Gen III/IV (LS-based engines)
Engine Size 5.3L/325
Engine Type V8
Engine VIN Code P
Liter 5.3
Make BUICK
Model RAINIER
Submodel CXL
Beginning Year 2005
CC 5328
CID 325
Ending Year 2007
Engine Family Chevy small block Gen III/IV (LS-based engines)
Engine Size 5.3L/325
Engine Type V8
Engine VIN Code M
Liter 5.3
Make BUICK
Model RAINIER
Submodel CXL
Beginning Year 2004
CC 5328
CID 325
Ending Year 2004
Engine Family Chevy small block Gen III/IV (LS-based engines)
Engine Size 5.3L/325
Engine Type V8
Engine VIN Code P
Liter 5.3
Make BUICK
Model RAINIER
Submodel CXL PLUS
Beginning Year 2005
CC 5328
CID 325
Ending Year 2005
Engine Family Chevy small block Gen III/IV (LS-based engines)
Engine Size 5.3L/325
Engine Type V8
Engine VIN Code M
Liter 5.3
Make BUICK
Model RAINIER
Submodel CXL PLUS
Beginning Year 2002
CC 5328
CID 325
Ending Year 2005
Engine Family Chevy small block Gen III/IV (LS-based engines)
Engine Size 5.3L/325
Engine Type V8
Engine VIN Code T
Liter 5.3
Make CADILLAC
Model ESCALADE
Submodel BASE

Application Notes	Designed for use with Big Mouth 102mm throttle body but can also be used with stock 90mm or 92mm throttle bodies. 78mm three-bolt throttle bodies require an adapter. May require a taller hood.
Beginning Year	1997
Ending Year	2004
Engine Family	Chevy small block Gen III/IV (LS-based engines)
Engine Size	5.7L/350
Engine Type	V8
Make	CHEVROLET

Application Notes	Designed for use with Big Mouth 102mm throttle body but can also be used with stock 90mm or 92mm throttle bodies. 78mm three-bolt throttle bodies require an adapter. May require a taller hood.
Beginning Year	1999
Ending Year	2014
Engine Family	Chevy small block Gen III/IV (LS-based engines)
Engine Size	5.3L/325
Engine Type	V8
Make	CHEVROLET

Application Notes	Designed for use with Big Mouth 102mm throttle body but can also be used with stock 90mm or 92mm throttle bodies. 78mm three-bolt throttle bodies require an adapter. May require a taller hood.
Beginning Year	1999
Ending Year	2017
Engine Family	Chevy small block Gen III/IV (LS-based engines)
Engine Size	4.8L/294
Engine Type	V8
Make	CHEVROLET

Application Notes	Designed for use with Big Mouth 102mm throttle body but can also be used with stock 90mm or 92mm throttle bodies. 78mm three-bolt throttle bodies require an adapter. May require a taller hood.
Beginning Year	1999
Ending Year	2019
Engine Family	Chevy small block Gen III/IV (LS-based engines)
Engine Size	6.0L/364
Engine Type	V8
Make	CHEVROLET

Beginning Year	2002
CC	5328
CID	325
Ending Year	2005
Engine Family	Chevy small block Gen III/IV (LS-based engines)
Engine Size	5.3L/325
Engine Type	V8
Engine VIN Code	T
Liter	5.3
Make	CHEVROLET
Model	AVALANCHE 1500
Submodel	BASE

Beginning Year	2005
CC	5328
CID	325
Ending Year	2005
Engine Family	Chevy small block Gen III/IV (LS-based engines)
Engine Size	5.3L/325
Engine Type	V8
Engine VIN Code	Z
Liter	5.3
Make	CHEVROLET
Model	AVALANCHE 1500
Submodel	BASE

Beginning Year	2005
CC	5328
CID	325
Ending Year	2006
Engine Family	Chevy small block Gen III/IV (LS-based engines)
Engine Size	5.3L/325
Engine Type	V8
Engine VIN Code	T
Liter	5.3
Make	CHEVROLET
Model	AVALANCHE 1500
Submodel	LS

Beginning Year	2005
CC	5328
CID	325
Ending Year	2006
Engine Family	Chevy small block Gen III/IV (LS-based engines)
Engine Size	5.3L/325
Engine Type	V8
Engine VIN Code	Z
Liter	5.3
Make	CHEVROLET
Model	AVALANCHE 1500
Submodel	LS

Beginning Year	2005
CC	5328
CID	325
Ending Year	2006
Engine Family	Chevy small block Gen III/IV (LS-based engines)
Engine Size	5.3L/325
Engine Type	V8
Engine VIN Code	T
Liter	5.3
Make	CHEVROLET
Model	AVALANCHE 1500
Submodel	LT

Beginning Year	2005
CC	5328
CID	325
Ending Year	2006
Engine Family	Chevy small block Gen III/IV (LS-based engines)
Engine Size	5.3L/325
Engine Type	V8
Engine VIN Code	Z
Liter	5.3
Make	CHEVROLET
Model	AVALANCHE 1500
Submodel	LT

Beginning Year	2002
CC	5328
CID	325
Ending Year	2003
Engine Family	Chevy small block Gen III/IV (LS-based engines)
Engine Size	5.3L/325
Engine Type	V8
Engine VIN Code	T
Liter	5.3
Make	CHEVROLET
Model	AVALANCHE 1500
Submodel	NORTH FACE

Beginning Year	2002
CC	5328
CID	325
Ending Year	2003
Engine Family	Chevy small block Gen III/IV (LS-based engines)
Engine Size	5.3L/325
Engine Type	V8
Engine VIN Code	T
Liter	5.3
Make	CHEVROLET
Model	AVALANCHE 1500
Submodel	ON ROAD EDITION

Beginning Year	2003
CC	5328
CID	325
Ending Year	2003
Engine Family	Chevy small block Gen III/IV (LS-based engines)
Engine Size	5.3L/325
Engine Type	V8
Engine VIN Code	T
Liter	5.3
Make	CHEVROLET
Model	AVALANCHE 1500
Submodel	WBH

Beginning Year	2004
CC	5328
CID	325
Ending Year	2006
Engine Family	Chevy small block Gen III/IV (LS-based engines)
Engine Size	5.3L/325
Engine Type	V8
Engine VIN Code	T
Liter	5.3
Make	CHEVROLET
Model	AVALANCHE 1500
Submodel	Z66

Beginning Year	2005
CC	5328
CID	325
Ending Year	2006
Engine Family	Chevy small block Gen III/IV (LS-based engines)
Engine Size	5.3L/325
Engine Type	V8
Engine VIN Code	Z
Liter	5.3
Make	CHEVROLET
Model	AVALANCHE 1500
Submodel	Z66

Beginning Year	2002
CC	5328
CID	325
Ending Year	2006
Engine Family	Chevy small block Gen III/IV (LS-based engines)
Engine Size	5.3L/325
Engine Type	V8
Engine VIN Code	T
Liter	5.3
Make	CHEVROLET
Model	AVALANCHE 1500
Submodel	Z71

Beginning Year	2005
CC	5328
CID	325
Ending Year	2006
Engine Family	Chevy small block Gen III/IV (LS-based engines)
Engine Size	5.3L/325
Engine Type	V8
Engine VIN Code	Z
Liter	5.3
Make	CHEVROLET
Model	AVALANCHE 1500
Submodel	Z71

Beginning Year	2013
CC	5328
CID	325
Ending Year	2013
Engine Family	Chevy small block Gen III/IV (LS-based engines)
Engine Size	5.3L/325
Engine Type	V8
Engine VIN Code	0
Liter	5.3
Make	CHEVROLET
Model	AVALANCHE
Submodel	BLACK DIAMOND LS

Beginning Year	2013
CC	5328
CID	325
Ending Year	2013
Engine Family	Chevy small block Gen III/IV (LS-based engines)
Engine Size	5.3L/325
Engine Type	V8
Engine VIN Code	7
Liter	5.3
Make	CHEVROLET
Model	AVALANCHE
Submodel	BLACK DIAMOND LS