Hello,
I tried searching and found many, many specs but didn't find the tow capacity for the 1979 E-150 350W V8 5.8

It was completely rebuilt a couple years ago and the mechanic said he put in a different cam, etc because he knew I planned on towing a camper. Sadly I don't know anything more specific.

So, I thought base specs for tow capacity would at least give me a starting point.

Any help is appreciated

 

I'm not sure about specifics but my 2001 E350 with a 5.4 liter engine was used to tow a camper by the previous owner so you are probably fine.