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Crank pulley bolt
#1
Hey everyone,
I have an '87 Ciera 2.8 MPFI. I might attempt to replace the crank balancer. Does anyone know the crank bolt size? Or a part number from GM, Dorman, etc. I googled it and apparently there's a common bolt for sale for the Chevy 305, 350 that fits the 2.8/3.1 multi port. 

7/16" - 20 pitch.
2 1/2" length. 
5/8" hex head. 
Grade 8 threads. 
Can anyone confirm this?
I'd just match the bolt when I take it out. I'm a bit intimidated with removing balancer lol. I'd just like to find bolt before I even start. 

Thanks Smile
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