does anyone know if you can bolt up a 1968 olds 455 motor into a 1967 326 poncho firebird ? how much fuss is there

I've seen it done a couple of times. I think the motor mounts are the main issue to overcome, then just some wiring to re-route.

Most anything can be done with a little bit of work...

I don't know if I could bring myself to do it, but sometimes you have to use what you have! Let us know how it goes... and what you had to go through. It may help others...

You DO realize that if it ever comes time to sell your car, potential buyers are going to look at you with a funny expression on their face and go, "Why?".

the original motor was a 326 can not find it so at least the 68 455 block is out of a olds 442 it is a HO block big torq & HP rare motor

If so, then my might want to consider selling the 442 motor for some decent $$$, then go shopping at one of the well-known Pontiac motor builders like Butler or SD Performance in Wash state?

Besides the hassles you are going to have to make this work, such as motor mounts and most likely exhaust issues, you also need to consider things that will come up with long term ownership of a mixed makes combo like this.

Say you want to replace the distributor cap or spark plugs. Then you get to walk into your favorite Auto Parts house and get to explain to the pimply-faced kid behind the counter, who only knows what is on the computer, why you want parts for an Olds to fit a Pontiac.

Inter-brand engine swaps are older than Hot Rodding but not politically correct with the restoration crowd. It's your car you should do as you please. Having said that I have a 455 Pontiac I'll be listing shortly. You could take salmon's advice, buy an engine like mine and be money ahead.