Phenolic Thermal Insulating Carburetor Spacer
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Mr. Gasket Phenolic Thermal Insulating Carburetor Spacer

Part No. 3404 Warranty Details  
Quantity  Add to Cart

Fit of this part varies by vehicle & equipment specs Type of Fit

Four-Hole bore manifold design 1 inch height. Manufactured from advanced phenolic thermostat plastic and engineered to withstand extreme high intake manifold temperatures. These spacers were designed to insulate and reduce heat flow to the carburetor keeping it cooler to allow a denser fuel mixture to enter the engine and produce more horsepower. Comes complete with gaskets, studs, nuts, and washers.

Product Features:
  • Keeps your carburetor cooler
  • May increase performance
  • Phenolic thermoset plastic
  • Fits holley carter and quadra-jet carbs
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by PowerReviews
Mr. GasketPhenolic Thermal Insulating Carburetor Spacer

(based on 1 review)

Ratings Distribution

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Reviewed by 1 customer

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(1 of 1 customers found this review helpful)


Everything included!


from Tomball, Texas

About Me Auto Enthusiast, Restoration shop

Verified Buyer


  • Easy To Install
  • Lightweight
  • Perfect Fit


    Best Uses

    • Performance Driving
    • Replacement

    Comments about Mr. Gasket Phenolic Thermal Insulating Carburetor Spacer:

    This product was used to help cool the fuel bowls on a Holley square bore carburator. This was purchased over other similar products out there because the gaskets and fasteners were included in the package. The spacer has reduced the heat transferred to the fuel bowls and eliminated this problem. I cannot tell how much performance has increased as the car was already overpowered and will not know until put on a dyno. Overall seems to be a quality product but time will tell if it holds up under many cycles of heating and cooling.

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    1 Question | 1 Answer
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    • Q:

      Was wondering if anybody can give me the bolt hole spacing on this item will it fit a 1965 390 cid ford stock carb 4bl.
      Asked on 4/2/2014 by scott from United States

      1 answer



        Hi Scott, I would happy to help! This spacer measures 5 5/8 inch x 5 1/8 inch and its bolt pattern is the same as your vehicle.

        Answered on 4/2/2014 by Vincent from AAP
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