pinhole leak in header collector

[Learjockey1]

You can also try the ultra hight temp silicone sealer, the orange stuff. I read it wil stop
1/8" header leak at the heads.

[bobcowan]

Originally Posted by Learjockey1

You can also try the ultra hight temp silicone sealer, the orange stuff. I read it wil stop
1/8" header leak at the heads.

Yes, it will. At the header flange. I havn't used a gasket there in years - silicone only. But, it has no structural strength. If you put it over a hole, it will blow out on the first drive. If you're lucky and carefull, it might last 5 minutes. Maybe.