Stromberg AA series two barrel carburetors were used on a variety of applications starting from 1935 into the 1950s, including Buick, Cadillac, Chrysler, LaSalle, Packard and Studebaker. These carburetors are usually marked with the model name, 'Aerotype', cast on the float bowl, with the model designation, eg. 'AA-1' cast on the throttle body, and the carburetor number stamped on the top of the float bowl cover (airhorn).
How to find Stromberg carburetor numbers
Explanation of Stromberg carburetor numbers
Stromberg Aerotype Model Designations
Aerotype carburetor models are designated this way:
AA(features) - (size)(auto choke type)(starter switch)
Features
- O: 1/8" oversize throttle
- U: 1/8" undersize throttle
- V: vacuum controlled power system
- P: vacuum actuated accelerator pump
- S: kickdown wsitch
- B: design revision
Size
- 1: SAE size 1, 1-3/16" throttle bore
- 2: SAE size 2, 1-7/16" throttle bore
Auto Choke Type
- 5: electric
- 6: hot air
Starter Switch
- 7: Stromberg starter switch used
Examples
- AA-1
- Size 1
- AA-2
- Size 2
- AAV-16
- Vacuum controlled power system (V), size 1, hot air operated choke (6)
- AAV-26
- Vacuum controlled power system (V), size 2, hot air operated choke (6)
- AAUVB-267
- 1/8" undersized throttle (U), size 2, vacuum controlled power system (V), design revision (B), hot air operated automatic choke (6), Stromberg starter switch (7)
Stromberg carburetors listed by carburetor number