Swapping a 360 from A-Body/auto into a '78 Dodge Van with factory 318/4 speed - Advice?

Well, I THINK I have everything about ready to do the swap this weekend (new flywheel for 360, Oil Pan with rear sump, pilot bearing for the 4 speed, correct motor mounts. I put a new water pump and fuel pump on it just to be safe.

One last thing I am wondering about is if the 318 exhaust manifolds will match up without any issues?
The 318 currently in the van is the factory 1978 engine and the 360 going into it is from 1972.

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