Mopar R3 Block
I don’t think he is going the R3 block route since what he was offered was an open deck R5 block. Which he is not going to get.
The discussion seems to simple have turned into a tech theme. Current pricing of parts is insane for sure. So building anything no matter the brand is about, out of control and probably prohibitive for many.
I’ll say one thing for sure, you nailed it when you said a stock block is capable of 550hp or ground pounding terror on the streets. No need for a race block for that easy to do level of power.
A 340 or 360 block is well suited for that power level and do it without worry of failure. Unless your a beast pounding the crap out of it daily without mercy.
The R3 block, the model more closely to the stock block, is really no more expensive to build except the entry fee of the race block. But why pay race block fee’s for a mundane build? LMAO!