Motor Mount modifications for 340/360 into Early A
Not sure about the early A's ,but the drivers side is the one that is different.
The passanger 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.