Motor mount questions

Ok, I know its been posted before and different things about it. But I have the 340, ready to go pretty much, and then i have the 318 mounts. Can I use the 318 ones? We also have a 360 in the garage with mounts on it, they look differnt than the 318's, so can I use one of those or something? I think the driver side on the 360 is the differnent one. Thanks, Dave