2.3 Engine Compatibility
 

I have a 2005 Mazda3 2.3, and im trying to swap engines from another 2005 Mazda3 2.3. My question is, are all 2005 mazda3 2.3 engines going to have the same engine specs or is there a difference between and S class an I class or a SP23 class.
This is the first ten numbers off the Vin for my mazda JM1BK32355 and this is the other mazda3 engine for swap #JM1BK12315.

Thanks