750 Eddy on 318?

You'll more than likely have the following by doing what you ask;

Poor throttle response, hard time tuning, poor gas mileage, crap drivabilty.

Gather your parts in a corner and wait until the 360 is done. Don't bother putting them on the 318. You'll probably be unhappy about it and will have to clean them up before you re-use them on the 360, (Cleaning gasket surfaces again and the like....)