Do I go with the 318 or the 360?

So for those wondering this is the situation, my car is pretty much done as far as cosmetics so only focusing on drivetrain. My buddy built up the drivetrain for his valiant which is the 318 with the Keith black pistons an whatnot and new top end...this engine has not been fired just built to be ready for the car once it was finished..he sat on the car and lost interest but still has the 318 and will give me the rear end and driveshaft from his valiant for a deal... on the other end is the 360 the 360 is in a friends barracuda and he only did the cam, heads, intake and carb but this deal comes with a transmission (rebuilt 904) and the rear end and driveshaft— the 318 claims to be around 425 hp and the 360 a bit over 400 hp I can get each package for about the same price was trying to see if there’s any benefits I didn’t see to the 318 over the 360 when driving them daily, also wanted some info on driving characteristics but from all the information I received I will probably go the 360 route because it leaves the door open for things in the future...at this point still feel free to throw in your thoughts or opinions on the matter.. thx for all the help guys! I appreciate it!