2.0l type4
 

What is the size of the valves in a 2.0l square port bus head. These heads are AMC heads.

I believe it is 37 x 33 in the bus 2.0 heads, not sure if the vanagon 2.0's are the same or not :confused:

The AMC heads have 41X34mm valves. I found that on aircooled.net hope that helps.

2.0l t4
 

Thanks for the info. What would the power be like with 44 x 38 valves in the head and a mild cam on a stock bore stroke engine.

Stock 2.0 914s had 95 to 100 hp depending on the piston they used.
And that was with 42 x 36 valves and about 8:1 compression.

So if you bumped the compression up to 9:1, went with some bigger valves, a mild cam, some port work on the heads, maybe get 120 to 125 hp.

2.0l t4
 

The pistons that are in the engine are the dished one's. I don't know if this is high compression or low compression.

dished pistons are the low compression bus pistons.

the 914 pistons were either flat or domed.
flat had 8:1 compression
and
domed had 8.5:1 compression

A little wrong...I think the ratios are right, but 914 pistons are flat top (Euro) and small dish (USA/Canada) BTW way smaller dish than bus pistons.