What size bolts to mount starter?

MoparMike1974 said

I found a thread where someone asked the same question but no answer was given. Post #16

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Some (like me) like the stud on top and the bolt in the bottom, but I think it actually goes the other way around.
You can also use bolts only in the 7 1/6 x 14 pitch 1.25-1.5 inches length.