Not sure how this will go

Well the Jensen museum was a total loss, after ringing them to confirm what I was getting they sent just a set of main bearings NO big end bearings, really miffed. So the old big end bearings have been refitted.
The block is now all painted, new two piece timing cover fitted, new water pump housing and an electric water pump fitted.

This last weekend I finally got the box and engine bolted together and lifted into chassis. The old massive starter has been replaced by a small hi-torque one as there was no room for the original and even this one is very close to the chassis.

Are the two bolts that hold the starter “special” or can I just use a couple of 7/16” unc socket head bolts, just asking as the top hole of the starter seams to have a slightly oversized hole.

Will post a couple of photos soon.