K&W block seal

as others said YMMV....
my 90 Shelby was pissing out the head gasket on to the right shock tower, while i was working a summer job WAY in the north woods of MN, 700 miles from home. like the entireoverflow bottle in 15miles leak. bars stop leak (metallic flake) got me by for the next two weeks and the drive home so i could fix it. desperate times...

that said going by the KW directions that is significantly more than "pour in", it at least "appears" to have a better chance of holding.