I have always thought about drilling & tapping the crankshaft for 1/2" flex plate bolts because I always had had problems w/the stock ones shaking loose.
Have any of you guys done this on 250 cranks? Outcome?
My old baseball coach had told me many years ago that Kay Sissle used to do that on his 292 cranks.
He also used to tell me to go see Kay because he knew 6 cylinder Chevys & he was good friends w/Kay, never got the chance to meet him, wish I had.
Do the 250 cranks have enough material to install 1/2" bolts.
I never had a 292 crank in my hands to see if there were any differences in size where the flex plates/flywheels mount.
Any help/info.
Thank you.
MBHD
