Air and Fuel Intake Manifolds and Components

FAST

Replacement Lower Shell LSXr 102mm LS1

$360.95

SKU: F003 146301

In Stock
In Stock
Ships by Jul 29
Free Shipping
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Description

This lower shell replaces the lower shell that came with the LSXR 102mm intake manifold for LS1, LS2, and LS6 engines. It is designed for cathedral port LS1, LS2, and LS6 engines. Its modular design allows for fast and easy disassembly, and removable runners allow for porting. It features an improved throttle body sealing flange and o-ring gasket. Constructed from high-quality polymer materials, it resists the heat sink effect of aluminum, offers lighter weight, increased strength, and improved heat dissipating characteristics compared to aluminum aftermarket intakes. It is designed to work with FAST Big Mouth and Big Mouth LT Throttle Bodies and includes stainless steel bolts, threaded insert throttle body mounts, and necessary mounting hardware.

Fitment

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Specifications

BrandFAST
Part NumberF003 146301

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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