318 Question about heads

[6d9 charger]

I just got a 318 from a mid 80's  car with very low miles , i want to put it into my charger until the big block is done .
i will be running a set of headers , but my problem is on the heads just below the exhaust ports there are small holes about 1/4 "
i'm assuming they are for emissions , can i fill the holes with a blob of weld than bolt on my headers ?
or am i forced to change the heads to an older style ? they are 2 bbl heads if that makes a diffrence.
thanks
pete

[tkkruzer]

I got the same situation and if nothing else i will tap um out andsink some set screws,that way no leaks,or burn thru. hope it helps,TK

[6d9 charger]

i just stuck a thin length of wire , they seem to go into the exhaust port . im going to weld it shut . no exhaust leaks than..

[Dodge69_440]

I had the same holes in the heads on my 360 magnum I built.  Smoked and leaked bad until I plugged them with some JB weld, works fine now.

[NMike]

just get some newer magnum heads for better flow.

the holes are for the smog pump. just tap some thread in there and screw in some pipe plugs.