What are you trying to put this engine into?
If its anything other than a 58-62 car or truck, then you will need to modify/adapt 58-62 mounts, or 51-54 car mounts depending on what you are trying to put the motor into. You could also drill 2 holes in the bottom flange under the timing cover and use 49-50 car mounts, 47-54 truck mounts, or possibly other pre '55 mounts, again, depending on what you are trying to put together. You need to give us more info.
