I meant all E bods, use the thick flat rubber ones, except the 1973, that uses the round trans. type, all around. Then buy poly replacements.
The A bod uses the same set of 340/360 engine brackets (or a 318 pair), but smaller rubber insulators.
I raced mine for many years with the 2 bolts that lined up, and left the odd one out; not even shimmed like yours with a nut.
When I switched to a 440, all I did was use the brackets that were on the core 440 motor. And the same rubbers as the 318's.