i have an ef shell (si) 90, and i was wondering if you could swap everything over from a b16 crx?
how much could u swap out.. axles? could you do a full swap?

 

no.? im pretty sure it does but i always like to get a quick reality check with hmt. CMON

 

mechanically the Civic and CRX of the same year range (88-91) are identical. So yes, you can swap motor, axles, etc. I think the shift linkage may be shorter on the CRX though...
There are no shared steel pieces though, and I'm not sure what if any interior parts are the same. Just mentioning that because you were a little vague on what you're doing, "everything" could mean different things...

 

yes.. i am only swapping the motor and/or front end

 

Shift linkages should be the same size. Just remember that the linkage will be different for a b-series swap than the d-series. So far only 2 options i've really seen is either an aftermarket linkage that bolts right in, or a cut and welded integra linkage.

 

thanks for the correction, I wasn't sure about that part.