header bolts leaking water

[TONYT]

had to have my heads header bolt holes heli-coiled,and during this process they got into the water jackets,now i have a slight leak in a couple of the bolt holes,was wondering what if anything can be done to stop the flow.?

any and all advice is greatly appreciated.

[rmracing]

I would put some sealer on the bolts .

[mustangjon]

Arp sealer just like you use on head bolts that go in the water jackets

[m347]

Blue Permatex. Have to use it on every header bolt on my big block Mopar.

[Rick93coupe]

Permatex would work good and you'll likely never have a bolt back out again either.

[TONYT]

thanx will give those a try

[bbfstanger]

pipe dope works good and helps keep the bolts from backing out.