Mopar R1 block

Ok got the X block.
It’s in nice shape, as in fresh bore of 4.040 new cam bearings. Clean.
I assume it’d be a good idea to install 4 bolt mains? It looks like it would favor a splayed 4 bolt cap setup?
I text my machinist and asked to sonic test this block, when he has time.
He of course responded are we gonna build a 440” small block? I said depends on the sonic test.

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Why go more overbore than you have to?
I did find nice pistons and rings for my R block. Going 4.04 bore.
Just trying to learn :-)