Re: 318 to 360 swap
Pretty much the same except one motor mount boss is about 1/2" different (I think the passenger side) and uses a different motor mount bracket.
The 360 oil pan is different, so if the 360 has a passenger car center sump, you will need a 360 truck oil pan which are avaliable new from mopar performance (with oil pump pickup, dipstick and tube), or if you only need a 360 truck pan and not the pickup let me know as I have two sitting around here.
I'm not too sure about this last point, but I think the engine block to transmission support on the drivers side may be longer for a 360 engine, but you can use a 318 support and a spacer at the transmission.
'83 RamCharger 4x4, '84 Ram 50 4x4,
'71 Charger, '69 Coronet....