Motor Mount modifications for 340/360 into Early A

Johnny Dart said

Not sure about the early A's ,but the drivers side is the one that is different.
The passenger side uses the same bracket on all the small blocks.What you need is a 340 a-body drivers side mount.They can be hard to find,or schumacher will sell just that side.

The guy on E-bay (texas something) is a knucklehead.He states "this is the bracket you need to do a 273/318 to 340/360 swap".
When in fact the mount he is selling is the passenger side,and you already have it.

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I have a 67 cuda with 273.

If I install a 360 in my car I will need a 340 passenger side motor mount only or a 340/360 passenger side motor mount ?

Half inch spacing was mentioned above and that the problem could be fixed with spacers. Where would the 1/2" spacers go on the passenger side? Toward the front of the motor or to the rear? Has anyone actually done this?

I noticed on my 273 that it had a bad motor mount and replaced it. It was on the passenger side and for some reason I could never get all three bolts in that mount and the rubber insulator has to go in cocked to one side. All three bolts was never installed just two. I could never get the rubber insulator square with the mounts. Anyone have a idea why that is?