Head bolts were the only ones that got sealant. I used loctite 592 on those. Every bolt was wire wheeled and cleaned before putting back in. I used a felpro marine gasket set, and all surfaces were thoroughly cleaned before put together.

Did you reuse your head bolts?

Yes. Machine shop told me it's ok to reuse SBC head bolts

Have a part # for the intake gasket or atleast gasket set ?

I believe it was this set.
https://www.summitracing.com/parts/f...SABEgKQA_D_BwE

I put about 15 minutes of runtime on the motor this afternoon on the hose, some idling and sometime between 1500-2000 rpms. Oil shows NO sign of moisture. Previously it took less than 10 minutes and the oil was milky.

Differences between this time and last:
-5w30 instead of 25w40
-New riser and spacer gaskets
-Pulling gas from an external tank
-Bow of the boat is probably a foot lower running this time vs. last. (Had it jacked way up to drain water in the bilge last time)