Can anyone tell me if someone makes a swap kit to put a 455 motor in an '87 firebird? As much info as possible would be great!

 

There was a thread addressing this question a few weeks ago. From what I remember the chevy big block can use the same mounts. Check the threads to be sure.

If you are thinking of a big block Pontiac check out www.chiefmanyhorses.com I believe they can help you with mounts, etc.