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Intake Manifold, Fuel-Injected, Complete, Polymer, Black,102mm Throttle Body, Big Mouth, Billet, Chevy, 6.2L, LS3, L76, L92, L99, Kit
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Estimated Ship Date: Monday 10/19/2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
146102B-KIT
Part Type:
Product Line:
Summit Racing Part Number:
FST-146102B-KIT
UPC:
00036584399223
Cylinder Head Configuration:
Rectangular Port LS3/L76/L92/L99
Fuel Injection Style:
Multi-port
Basic Operating RPM Range:
1,800-6,000
Intake Section Included:
Complete
Throttle Body Bore Size:
102mm
Engine Block Deck Height:
Standard deck
Injectors Included:
No
Multi-Port Fuel Rails Included:
No
EGR:
Yes
Aftermarket Fuel Rail Required:
No
Throttle Body Included:
Yes
Supplemental Bosses Cast-In:
Yes
Supplemental Bosses Machined:
No
Supplemental Boss Quantity:
Eight
Runners Included:
Yes
Runners Removable:
Yes
Plenum Material:
Plastic
Plenum Finish:
Black
Base Material:
Plastic
Base Color:
Black
Remanufactured:
No
Quantity:
Sold as a kit.
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.
FAST LSXR Intake Manifolds
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.
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Some parts are not legal for use in California or other states with similar laws / regulations
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