Sealants and fillers

[Old Radio Tech]

Putting re-manufactured heads on a 283. Felpro gasket kit says for those headbolts entering the coolants passages apply a pliable non-hardening sealer to the threads. Recommendations?

Instructions also say to apply a quick drying adhesive to the cylinder heads to hold the intake manifold gasket in place. Recommendations?

Lastly, I have some pitting on the block head mounting surface around the coolant passages/water jacket holes. Looking to fill these areas to improve the chances my head gasket will remain sealed. Recommended fillers?

Thanks,

Paul