Tom M'Guinn

I have not been able to find one for the block, just the head. It may be out there, but I haven't seen it either.

Tom M'Guinn

Duke, those pictures don't really do it justice. In person, close up, you can see where some areas are getting marginally more pressure than others. The lower sheet seems to have more variation than the upper, but when I send it in for thier color analysis, I should have a better idea. At least it confirmed the block/head are making contact all around.

I've never had much luck with light behind the straigtedge on the block -- at least in the engine bay -- just too hard to get a good view and lots of gaps, etc. Works great (better than feeler gauge) on the head though.

Van, the film comes 10.5" wide. I bought two feet of it and cut it down the middle, then punched stud holes using an old gasket as the pattern. If you need it wider, you'd just need to buy more film. This stuff is not engine-specific, but seems like they should make kits pre-cut for popular gaskets (they don't, I asked).

toddk911

Thats what I thought but discussions in the past had many saying copper is not really suited for our needs. ??

Tom, Chris??? Copper hg?

dand86951

Several years ago I tried a copper HG on a Darton sleeved motor. End results were it wasn't any better than a widefire HG. It also tended to leak when cold. I don't think the Copper was any worse than the Wide Fire either. I understand there are now coated copper HGs that will mold into some of the imperfections so they may be a good alternative for high boost applications.

beentherebaby

Most copper HGs don't have much if any resiliency compared to composite or laminate HGs. Even the newer synthetic copper HGs are pretty "dead" onced compressed. This can be a issue when the thermal expansion that occurs in all engines, especially those with aluminum cyl. heads.