4 speed swap

ok..iv'e searched the archives and still need some advice. I ran across a deal on a 4speed, its bolted up to a 67' 273 cuda..iv'e got a 67' valiant 360, 727..the owner of the cuda tells me that the 4speed was out of an early 80's something??? He thinks it will be a straight up swap because it works on his 273...my 360 is approx. a 73' and the car still has the pedals from the factory...what can i expect to run into here??? ( as far as, bellhousing, flywheel, bearing, etc. ) Thanks in advance.