David Kao wrote:
> I think the 1.9 and 2.1 blocks are different internally too.

There are internal differences but Scott and I were talking about the
external differences between the cases.  He refuses to admit that the
cases are different where the plenums bolt on ... between 83 1/2 through
"Most" of the '85 1.9 cases and the 2.1 cases.  Not a big deal but still
something to consider.

Go here for what GoWesty has to say about 1.9 vs 2.1 engines:

http://www.gowesty.com/library_article.php?id=806

Mike