I run A #14044807 Block 4.500 Bore.10.200Deck
Motor has held up to alot of shit.
But I'm not seartin about the wall thickness. If I remeber corectley My block Is a Siemiesed Bore ,But don't hold me to that I have alot of Motor Projects In the works and can't remeber every fine detail.
I do know Friends have gone to 4.600 safely.
What are you looking to but together????