Couldn't find anything that had information about that engine code.  How about a part number on the case?  Something like 111-101-025 or 043-101-025, the first three numbers may be different and there may be a letter at the end of the part number.

You could also try contacting http://www.vw-classic.net/index.html (Click on "English" in the upper part of the page if it shows up in German) and see if they might be able to help you out.

The actual p/n is a 9-digit number, sometimes followed by a suffix, side of the block, down low, below the pushrod tubes, usually a fairly large stamping...

Correct. On the sump part of case on the #'s 1 and 2 side of case

Well , Now you have really done it. You are going to get a education for sure if it needs engine work. If the Brazilians and the Mexicans won't even talk about those engines should help your judgment . Those Guys went to the in-line 4 cyl (Rabbit) right off the bat. If you have to put coolant in( which is often) , you have to jack up the bus in the front , take the grill out and remove a little plug on the rad. to bleed the system or it will get an air lock when you can't put enough coolant in to do the job.(filled from the rear)
     Some of those engine ran a long time and a whole lot didn't make to 15,000 - 20,000 before springing water leaks from everywhere tearing the engine up when the coolant got into the crankcase. Alot of folks opted for replacing the engine with an Subaru Legacy and they ran forever. I have driven one of those and they were great( double the HP) and were cheaper than rebuilding the VW. There use to be someone out west made a bolt-end kit . VW in Brazil use to make a ret-tro kit complete with a 2.0 in-line Rabbit (new) engine.
   All this BS is worth what it cost you. Its your coal truck do what you want to but I have been there ,done that.

If I remember right the only major parts that are the same are the front pulley and the valve covers from a type-1. I  forgot about any of the other stuff thank God.

What !!!!!!!!

KC, You are almost right. Its not that I don't have a few comments to make on your latest endeavor, but I just have to keep reminding myself this is still a family site and I  just hate to watch creative juices spill on the floor. 

post up some pics!