Changing the Heads

So i have done some research and I've decided to get a new age sn95 and put the 3 valve heads on them. The problem I am running into is that i don't know if the heads will bolt one with no problem. I couldn't find a definite answer on that and I don't know what to do about the variable cam timing. If i can set it up on the sn95 i would like to if i have to get a 197 ECU or if its to much of a pain and just leave it. I am really bad at explaining things and I'm in a rush so if its unclear let me know. Thanks!

You should try calling a place like Logan Motorsports or Blow By Racing, they should be able to give you the answers. I know LM has conversion kit in order to use the entire 3v motor in an sn95 and you need adjustable cam gears to get rid of the variable valve timing.

you are god thank you

That's for putting the entire engine in the car. Is the OP talking about the head swap or an engine swap?

The heads don't fit because of the machining differences of the Coolant passages.

damn!