Slow build 71 Scamp 440

***** Solved! So interesting problem today. I picked up some hardware for the crank and the crank bolt won't fit.
When I try to thread it in it just won't take and gets jammed. This is by hand though. I don't want
to add any torque to it until I consult with you guys. The threads on the bolt seem to be nice and
uniform. The crank threads I can't get a good read on but obviously there is a problem. I'm thinking
I need to chase the threads in the crank shaft. Or do I put a little elbow grease into it with a socket
and ratchet?

Description from the seller.
Reproduction Harmonic Balancer to Crankshaft Bolt and Washer Hardware Package for all 58-79 Big Block Engines only. Made to OEM Specs with “NO” Markings as Per Originals. Made in the USA.

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