Phenolic Caburetor Insulating Spacer - 4-Port

This phenolic thermal insulating carburetor spacer is 1" with 4 hole center.

PART# 3404

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This phenolic thermoset plastic spacer insulates your carburetor keeping it cooler and helps prevent fuel percolation (also known as vapor lock) in hot weather. Will increase performance in some applications.


  • Keeps Your Carburetor Cooler
  • May Increase Performance
  • Phenolic Thermoset Plastic
  • Fits Holley Carter And Quadra-jet Carbs


BrandMr. Gasket
Emission Code3
Product TypeCarburetor Spacer
WarrantyLimited 90 Day Warranty
Part Number3404


This part is legal for use on Uncontrolled (Non-Emissions Controlled) Vehicles or Racing Vehicles.

The following vehicles are considered Uncontrolled (Non-Emissions Controlled) Vehicles:

  • 1965 and older U.S. manufactured California Certified vehicles
  • 1967 and older U.S. manufactured Federally Certified vehicles
  • 1967 and older Foreign manufactured vehicle

Racing Vehicles are vehicles that are used exclusively for racing or other forms of competition that are not registered and that may never be used on the street.

Warranty Information

Limited 90 Day Warranty: See Details
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        *Free Shipping & Handling only offered to the contiguous US on orders over $100.

        Some parts are not legal for use in California or other states with similar regulations.