w124 heads
from my recollection the only real differences between the short blocks was something to do with the chain guide or tensioner. and oil squirters under the pistons or something like that. other than that they were fundamentally the same.
that was over ten years ago.
will the heads interchange? i cannot say, although if i had an early 104 head lying around and lots of free time, id give it a shot; based on my recollections.
no more mechanical fuel pump
i might get a 104 and do a swap







