Is this fact? All Twin Cam Heads are interchangible?

All Twin cam Heads are interchangible. A 96" is an 88" Stroker.
You have to use the intake collars that go with the heads or the intake will not line up...
Make sure the collars fit w/o hitting the heads...or you may have to grind to make them fit...
If you use shaved heads...you have to take some off the intake or it will bind on the heads...

Thanks for help.

 

Yes. Few differences on the motor mounts on the front head starting in '08 or '09, but the basic head is the same other than the intake flanges like you mentioned.

 

Pretty much. The '08 up heads have a mounting boss machined in to the front head as 07roadhawg mentioned.

You can shave some off the heads and still use a bone stock intake manifold. Not sure what the limit is, but my intake is stock and my heads have been clipped. Probably need to talk to one of the head porters to find out what the actual limit is.

Zach