[KTL]

I think two saddle pins at the #8 bearing bore would be sufficient for a mild race engine? I just think they'd be a good thing to have for making bore alignment more consistent.

How does a machine shop align the case when the #8 is removed for boring the mains? Or do they leave #8 in place and begin boring from the flywheel end? What happens when #8 bore needs work and you can't have the bearing in there to establish alignment? A couple of pins in the case at that end would answer the questions!