1.7 vs 2.0 exterior case dimensions Options

[moparrob]

OK, here is a newbie question for you.

When comparing a 1.7 case to a 2.0 case, are the dimensions (width) the same from cylinder base to opposing cylinder base on both engines?

The reason I ask is I want to set-up a mock up engine with the 1.7 case I have, with the intention of eventually building a motor based on the 2.0 case. Both motors will be using 1.7 barrels and heads.

I want to design an intake and exhaust system on the bench, on the mock up engine (1.7 case), and want to be sure it will bolt up top the 'real' engine (2.0 case) once it is built. (IMG:style_emoticons/default/headbang.gif)

Any other concerns or thoughts from anyone who may have some experience with this?

Thanks.