Challenges:
* Finding a suitable transmission: The original 1950 Plymouth likely came with a manual transmission. You'll need to find an automatic transmission that will physically fit and can be adapted to the engine.
* Engine and transmission compatibility: You'll need to make sure the transmission's input shaft is compatible with the engine's output shaft, and that the engine has enough torque to drive the automatic.
* Modifications: You'll likely need to modify the transmission mount, driveshaft, and potentially the engine bellhousing to fit the new transmission.
* Controls: You'll need to install a shifter, linkage, and possibly a torque converter for the automatic transmission.
How to make it work:
* Research: Start by researching which automatic transmissions are compatible with the 1950 Plymouth flathead six. Look for transmissions from similar-era cars that have the right bolt pattern and output shaft configuration.
* Consult experts: Seek advice from experienced mechanics specializing in classic cars. They can help you find the right transmission and guide you through the necessary modifications.
* Kit options: Some aftermarket companies offer conversion kits that might include the transmission, adapter plates, mounting brackets, and other necessary parts to make the installation smoother.
Before starting:
* Assess your budget: This project can be expensive due to the specialized parts and labor involved.
* Evaluate your skill level: Installing an automatic transmission requires a good understanding of automotive mechanics and potentially fabrication skills.
In summary: It's definitely possible to put an automatic transmission in a 1950 Plymouth with a flathead six, but it's a complex project that requires careful planning, research, and likely the help of an experienced mechanic.
