For the most part the heads are all the same (not true by a long shot, but the minor differences across the several revisions will make no difference to 90% or owners). The only SIGNIFICANT difference is that the GE and GTE have different intake cams. So, YES, you may swap them but if one is GTE and the other GE you may want to consider swapping the intake cams and re-shim so that the valve/lobe clearances are according to spec.
__________________
If something breaks or you need to contact a member of the administration please post HERE. Unless it's a private or administration matter please post it on the forum. It benefits no one else if car related questions aren't posted for future users and takes away from the time I'm able to spend helping on the rest of the forum.
If you're so inclined I'm always more than happy to accept tips via PayPal. 
Tip Jar ---> 
|