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Jim Brierley · 04-12-2020, 11:39 AM

I never use castellated nuts on mains or rods, they only have about 3 full threads that they pull against, just grade 8 or ARP nuts, no lock-tite or anything else either. I race B engines, never had a problem.

04-12-2020, 11:39 AM	#3
Jim Brierley Senior Member Join Date: Jun 2010 Location: Temecula, CA Posts: 4,095	Re: Main Bearing Bolts, Nuts, Washers I never use castellated nuts on mains or rods, they only have about 3 full threads that they pull against, just grade 8 or ARP nuts, no lock-tite or anything else either. I race B engines, never had a problem.