Why it's difficult:
* Dodge didn't build the motorhome: Dodge provided the chassis (the base vehicle), but the actual motorhome body (where you live) was built by various companies like Winnebago, Fleetwood, etc.
* Varied Engine Options: Dodge offered a variety of engines in their trucks in the 1970s. The specific engine choice depended on the motorhome manufacturer's specifications and what was available at the time.
How to find out:
1. Check the VIN: The Vehicle Identification Number (VIN) is your best bet. The first 8 digits of the VIN tell you about the vehicle's manufacturer, model year, and model. Look for the VIN plate, which might be on the driver's side doorjamb, the dashboard, or on the frame. Once you have the VIN, you can use a VIN decoder service (like [https://www.vindecoderz.com/](https://www.vindecoderz.com/)) to see details about the engine.
2. Look for Engine Identification: Locate the engine block and look for an ID plate or number stamped into the block itself. This number can be used to identify the engine's specifications.
3. Check Documentation: If the motorhome has its original owner's manual, maintenance records, or even a sales brochure, these might list the engine details.
4. Consult Experts: If you're still stumped, contact a Dodge enthusiast forum or a local classic car mechanic who specializes in older vehicles. They might have access to historical records or can identify the engine by its physical features.
5. Motorhome Manufacturer Information: If you know the make of the motorhome (Winnebago, Fleetwood, etc.), you can check their historical records or forums to see what engine options were common for that year and model.
Common Dodge Engines of the Era:
* Chrysler LA-series V8: A common option, available in different displacements (318, 360, 400 cubic inches) and power outputs.
* Chrysler RB-series V8: Another common option, available in displacements like 383 and 440 cubic inches, known for their power.
* Other Less Common Engines: You might find less common engines like the 225 slant-six or other variations depending on the build.
Remember, a bit of research and detective work might be needed to pinpoint the exact engine in your 1973 Dodge Class C motorhome. Good luck!
