Edelbrock 9265 | Carburetor Heat Insulator

Part Number
Carburetor Heat Insulator Gasket; For Use w/Performer Series and Thunder Series AVS Carbs; 0.32 in. Thick
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The Edelbrock Square-bore Heat Insulator Gasket #9266 is designed to prevent percolation on Edelbrock Performer Series carburetors exposed to extreme under hood temperatures. This gasket features an open center which will allow open plenum Torker and Victor style manifolds to seal properly to the carburetor. Prior to installation, check air cleaner-to-hood clearance to ensure that additional height of heat insulator gasket will not cause interference. Remove air cleaner and all attachments to the carburetor such as fuel line, throttle linkage, and vacuum lines. Be sure to note the position or tag each piece to facilitate re-installation. Remove the carburetor and set it aside, then remove the old base gasket and any additional plates, such as Edelbrock square-bore adapter #2732. Remove the short carb studs and install the longer studs. Install the #9265 heat insulator gasket directly against the manifold, then replace the carb and all other connections. Note that gasket #9265 is rigid enough to replace square-bore adapter plate #2732, if required.

BRAND: Edelbrock


  • Carb Insulat
  • Dual-Plane Low-Rise Intake w/180 Deg. Firing Order
  • Helps Prevents Fuel Percolation
  • Edelbrock; Gasket; Heat; Insulator; Carburetor; Carb; Installation; Replacement; Percolation; Performer Series; Thunder Series; AVS; AVS2; Square bore; Dual Quad
  • Comes w/Extended Carb Studs
  • Square Bore Applications Only
  • Heat Insulator Gasket for Open 4150 Square-Bore-0.320in. Thick
  • { eo : 0in.}
  • Carburetor Heat Insulator #9265 Square Bore
  • Carburetor Heat Insulator Gasket


WARNING CA Proposition 65Yes
WARNING CA Proposition 65 MessageWARNING: This product can expose you to Chromium; which is known to the State of California to cause cancer or birth defects or other reproductive harm. For more information; visit www.P65warnings.ca.gov.



Customer Questions
What size Edelbrock carburetor do I need?
The size of the Edelbrock carburetor you need depends on several factors, including your engine's displacement, performance goals, and intended usage. It is recommended to consult Edelbrock's carburetor sizing guidelines or seek advice from a knowledgeable professional to determine the appropriate carburetor size for your specific application.
Why is my Edelbrock carb flooding?
Several reasons can cause an Edelbrock carburetor to flood, including issues with the float level, needle and seat, or fuel pressure regulator.
How does the Edelbrock electric choke work?
The Edelbrock electric choke uses an electric heating element to control the opening and closing of the choke plate, allowing for automatic choke operation based on engine temperature.
Are Edelbrock carbs square bore?
Yes, most Edelbrock carburetors are designed as square bore carburetors.
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