Re: Main bearing bolts
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On my Burtz block I used some O rings that had a small (thin) cross section. They were completely compressed into the hole so that the fastening was metal to metal.
All steel has very much the same coefficient of elasticity up to the yield point. It is 30,000,000 psi. The grade 8 bolts have a higher yield point than grade 5 or lesser grade.
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