There are two similar types of air-cooled VW motors:
- Type 1: motors used in beetles and early models of everything else.
- Type 4 motors, originally used in VW Type 4 cars and Porsche 914s and starting in 1972, Vans too.
I managed to pick up one of the most desirable air-cooled VW motors a 1971 Type 4 1700cc W code High compression (8.2:1) engine from a VW 411 but is the same engine used in a Porsche 914 for $200.
The story was it was rebuild, put in a van and then the van was wrecked after about 20,000 miles. It then sat for many years.
This motor have 80-85 hp originally and throttle body fuel injection. The motor that would have been in the '68 beetle originally would have bee a 1500cc and had about 50 hp.
This motor is a direct bolt in with the exception of changing the flywheel pilot bearing and the rear body section will have to be trimmed because the cooling fan sticks out the back instead of on top of the engine.
Here is a pic with the heat shielding removed.