i was wundering is it ok to put a chevee 350 into a bonevill?

Doesn't bother me none!

Now, how to do it can be a whole new can of worms, especially depending on which generation of Bonneville you want to shove it in.

i was hoping to put in a 2003. can i keep the same trans alridy in the car?

Honestly, this is the first time in 15 years I have ever heard anyone even consider putting a 350 in to a front wheel drive application. Any thing you do would have to be fully custom and fabricated. Honestly, you are asking the wrong questions for someone considering this sort of endeavour. There is much information about many swaps in to many things.

ok, but i understand cadilak has v8 and has front wheel 4wd.

Again, you are still asking all of the wrong questions.

You should do major homework on your own before anyone could even begin to help you.

Questions like:
What is the ultimate goal?
What drive trains even possibly fit in to that goal?
What car will this be getting shoved in to?
How can you mount the engine? Even control it?
What transmission? Will it fit? In the car? On the engine?
Is it compatible with the recipient? How is it controlled?
We're talking subframes and drivelines and feeding and controlling. Stuff GM spent millions on engineering just so they could stamp out a bunch of cars.

Until you are ready to completely reinvent the wheel, you probably shouldn't mess with it.

I agree with rjolly87: It'* okay to. No law against it nor an ethical concern that I can see.

Bellhousing won't bolt up. If it did then the front of the engine would have to have pulleys in the passenger-side strut tower as a 350 is 8.5" longer than a 3800. Or everything would have to be shifted towards the driver'* side by probably 10", leaving the driver'*-side half shaft too short to be usable. That and the 350 oil pan would need to be custom-fabricated. If all of this could be overcome I'd still suspect that the block is too wide to fit next to a 4T6x transaxle.

Yes the Northstar 4.6, and it is only ~0.75" longer than a 3800, and aluminum so it didn't weigh near as much. It was also designed to be in a transverse orientation and bolt up "sideways" to a 4T6x transaxle, and even then it was a tight fit in the engine bay. The Chevy 350 was not designed with any transverse applications in mind. Also, depending on what 350 you would choose, the hood would likely never be remotely tall enough.

I agree with rjolly87.

If the goal is power there are many alternatives that could be used to achieve results that a 350 would be able to supply in that engine bay with that transaxle. If the 350 in question is 205HP or less then the only thing that would be accomplished by this endeavor would be adding weight to the front of the car, which could be done more-easily with lead bricks.

Which brings us back to rjolly87'* great question:

He might be looking for the 'wow' factor, or he'* ******* with us.

"Wow" could be had by mounting a 350 on the roof. If he'* legit, I'm hoping he'll ask/answer rjolly87'* question(*), do something interesting, then tell us how it goes. Always hard to tell with the newbs.