Quote:

I did not ask how much they removed when resurfacing. The heads looked good when coming off, so would not think they took enough off to cause a problem with intake sealing. It's possible some coolant got into exhaust pipes when pulling heads, but the smoke never let up. Everything was free of coolant in cylinders.I did not look for bubbles, but also did not run it very long-probably 2 minutes each time(twice). I guess I'll just order another set of gaskets and try again.I may try for a better intake gasket set which may seal a little better. I've built about 5 318's, but never had a problem with them.




I would do the following:

Don't pull the heads just yet

Fix your intake(s) leak, and be very careful with your gaskets, and make sure everything is clean.

Pull the plugs and inspect to see if you can determine which hole(s) are affected.

Run the engine up to temperature, and if theres no identifiable leaks you can find--other than exhaust steam,--then pull the plugs again and look for suspects.

I'd bet your intake leak is the start of the problem.