More then having a concern about crank strength up at 6800 rpm and 700 Hp I would 1st off be far more concerned with the strength of those 2 bolt plain grey cast iron main caps.
Yes, there plain cast iron just like the block, not Armasteel or modular iron like the crank!
Then 2nd if the block was drilled and tapped for 4 bolt main caps I would worry about the loss of strength by having those 6 unused bolt holes open with no grade 8 Allen head bolt very well loctited in to help limit flexing which then provids a good place for a crack to start.
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I do stuff for reasons.
Last edited by 25stevem; 12-04-2022 at 12:08 PM.
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