When screw holes wear out or cross-thread from track use, Holley's replacement main bodies let owners rebuild an Ultra XP carburetor without replacing the entire unit — these aluminum main bodies are the same units used to build Ultra XP carburetors at the factory, offered in sizes from 600 to 950 CFM.
Specifications:
- Category: Air and Fuel Delivery
- CFM: 750
- Finish: Hard Core Gray
- Material: Aluminum
- Product Type: Ultra XP Replacement Main Body
- Sub Category: Carburetion
- Warranty: Manufacturer's Limited 90 Day Warranty
- Part Number: 134-323
FAQ
What carburetor is this main body for?
It's a replacement main body for the Holley Ultra XP carburetor, 750 CFM.
Why would I need a replacement main body instead of a new carburetor?
If screw holes become worn or cross-threaded from track use, replacing just the main body avoids replacing the entire carburetor.
What finish is available on this main body?
This main body comes in a Hard Core Gray finish.

