Yeah i was wondering if anyone has done the 70-73 front end conversion on a 74-78 camaro, cause i got a 73 front clip including the header panel, valence, both fenders, and the hood. I was wondering do i need anything else? and if not is everything just a bolt on?

I did one about 10 years ago.I installed a 78 front clip on a 71.I used the rad support and it all bolted on.

The front should be as Tim says, the rear though that takes some cutting here and there.

If I was you, I would find a '70-'73 car that needs a front clip and put it on. Those cars are worth a lot more than what you are suggesting. Yes it can be done, but is that your best option?

This is a modification of a 74 to a 70-73 RS look. The link is from a forum in Chile, one of the most important of old american cars in our country.
I think it's going very well.

http://www.acelera2.cl/foro/viewtopic.php?t=5169

You need to join the forum to get acces to that post, sorry, but here are the pics of the process

http://www.acelera2.cl/album/thumbnails.php?album=125