sounds like a good subject for a poll question.

25 years and 400 + engines and the best base sealant I have found is Curil T.

Aircooled Technology has used probably 100 sets of Nickies over the years and he always uses Curil T on cylinder bases, even with copper gaskets or thicker steel base shims in excess of .250" with no leaks.http://forums.pelicanparts.com/uploa...1195221930.jpg

Somebody get that guy a small modeling/hobby paint brush. That's a big bead of green goo for such a small area!!
:D

Hey, is that a VW setup? Look at the valve cover gasket on the bench.....

I agree on the paintbrush idea, I used about 1 1/2" of his bead on the entire 2 sides of the copper gaskets on mine.

Porsche 356.912. There actually isn't all that much on there - the step that seals against the case is MUCH smaller than a 911 cylinder :-)

The rest of the photos are here: http://www.LNengineering.com/raby912

If you have the time, they are a blast to go through. I photo-documented the build of my 3/4 race street 1883cc Porsche 356/912 engine a few years back.