168 flywheel, manual. The starter was for a 69 corvette 350. I have now tried a 72 stock starter and it has enough throw to reach The flywheel. The hi torque mini starter will not. I have also been told a big block starter will bolt up and has a longer throw.

I am checking. Still do not understand why there is a difference in flywheel gap.
I can measure from the back of the bell housing to where the flywheel starts will that help.

thanks
cal