ORIGINAL: JohnBuckner

Stand offs

It appears you do not have far to move it out You could just use a block of wood at least the diameter of the motor mount drilled for the bolts and use long bolts from the hardware store to blind muts in the firewall

Another way to do a stand off is use lamp tubes from the lighting department (for making, repairing lamps) just cut them to length and agine use long bolts. I done this method quite a few times. Another material you could use for the stand off tubes is copper tubing and easy to work with, this works well with the short distances you are working with.

At any rate you will have to drill the firewall and install blind nuts for the electric mount and just leave the existing blind nuts in tact.

John