Mopar R1 block

yellow rose said

FABO member @Rocket has the caps you want for a great price. Splayed caps are overrated.

Nice pick up. If it sonics well 4.125 is a good starting point.

There is something to be said about ring seal, deck thickness and cylinder wall thickness. Try and not give up any more than you need.

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My machinist is super conservative, so he won’t recommend anything near dangerously thin, or even thin. He’s a PIA
When he was honing my latest block, I said, I did this at a shop I helped at, so just clean it up. He calls me and starts this is at .008 in clearance already! I’m like take another thousands off if you have to, cause the pistons guys said 7-8 at least. He’s getting it more and more.
Guy I got the block from says it’ll only go 4.06 as that’s what the catalog said.
I heard these things are pretty thick.
Can’t wait to sonic check it.