I didn't put thread sealer on the head bolts of my 289 because I thought they are blind holes. Then I read about the sealer on this forum and in my shop manual, so I took off a head (the engine is still on the stand) to be able to clean threads, as I had put oil on the bolts, so no sealer would stick.
I looked at the holes again and I don't see any connection to the water channels. I sprayed degreaser in the holes and that doesn't disappear either. So is it just me, or are they really blind holes?
I'd rather leave the other hand on, because removal doesn't make the head gaskets any better.
I looked at the holes again and I don't see any connection to the water channels. I sprayed degreaser in the holes and that doesn't disappear either. So is it just me, or are they really blind holes?
I'd rather leave the other hand on, because removal doesn't make the head gaskets any better.