318 LA harmonic balancer bolt thread and pitch size

[strictly gravy]

I am getting ready to put the final touches on my 318 LA motor before dropping it into the 72, and I want to clean up a few boogers that are on the threads of the crank shaft. So, I was wondering if someone knew the thread and pitch size of the bolt to the crank. Thanks.

-Greg

[Speed Dragon]

Freaking big, that's what size :D I don't know what size it is, but it is a fine thread. Maybe 3/4 thread size?

[GHS]

It should be 3/4-16.