Check the left hand side motor mount . . . I think the 360 is moved back 1/2" on the driver side. It is same as the 340 . . . hence the bracket needs to be the correct one. Or maybe you can move the bracket to the "other side" of the ear on the block ??? . . . what year car are you doing ?? I went with a 360 in my 1970 Sport Satellite, when it was originally a 318 car. I had to find a left hand 340 engine mt bracket. Once I had that, it all fit like a glove. Also, had to use the 360 oil pan. One neat trick, on the exhaust manifolds, if you can find them, is a 318 powered 72 or 73 Road Runner - the exhaust manifolds on those have the port size for the 360, but look like regular 318 (even have 318 RR cast into the manifold). Other trick on these manifolds, is that on the right hand one, there is NO heat riser valve !! The manifold was cast without it !!

Good luck with it all . . .

Cheers,