Air and Fuel› Intake Manifolds and Components

Allstar Performance

Base Plate Insert 1.400 4pk for 1/2in Spacer

$47.22

SKU: A02M ALL26189

In Stock
In Stock
Ships by Jun 15
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Beginner — under 30 min

Description

The Allstar Performance Base Plate Insert is a set of four restrictor plate inserts designed to fit Holley 4-barrel 4150/4160 series carburetors. These inserts have a 1.400-inch diameter and are 1/2 inch tall, made from natural-finish aluminum. They are intended to be used with a 1-inch thick, four-hole spacer and can be changed after the carburetor is removed. The inserts help restrict air/fuel entry, slightly reducing power to prevent wheel spin.

Fitment

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Specifications

BrandAllstar Performance
Part NumberA02M ALL26189

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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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