Need help with TC /flexplate install

The '62 FSM calls for 10-3/4" diameter TC for the TF-6 and 11-3/4" for the TF-8. But we don't know what you are doing with this application. Is this stock or ??

I would grind the bolts down. If washers are used, then hardened flat ones really are needed. The side torque on these bolts in single shear loading will make them want to 'tilt' and flex the plate and TC, so the closer the heads are to the plate, the better. And the thread engagement is the same regardless with the new blocks, and the 7/16" will help. Make sure they are grade 8. I like to use blue LockTite on them.

BTW, the TC bolts take about 4-5 times less torque than the crank bolts due to the much longer distance from the crank centerline to the bolt center. The weak point always looked to me to be the welds of the nut blocks to the TC.