water leak

[flathead1946]

I installed my engine (440 1968 charger) and fired it up. I have some small water leaks I think are coming for the header bolts. Question one is do the header bolts go inter the water jacket? Question two what's the best way to seal them up? Stop leak? RV sealent? thanks in advance

[histoy]

Ultra Copper sealant has worked well for me.

[Dino]

Agreed

Drain some of the coolant so it sits below the bolts.  Remove the bolts, put a dab of permatex ultra copper on each, stick them back in and tighten.  Let the car sit overnight and retorque the next day.  Retorque after your first 2 or 3 trips.  That oughta do it.