I have a set of header gaskets that look like they are black in color but are actually Dark Blue.
These are the best header gaskets I have ever used but I can't remember which brand they are or where I got them.
they have a metal core and the outside layers are kinda soft. the header flanges leave an imprint in them. they have been on and off sevral times over the last 4 years and are still holding up, they are not felro blue stripes or the ultra seal, both those are junk compared to these, anyone maybe know what brand they are, I need another set.