Good read,

The author is one of my favorite tech writers and IMHO one of the best out there.

My take is all non MLS head gaskets on aluminum head engines will eventually fail. However MLS gaskets require really flat heads and very good surface finish so you need to be carefull when using them.

And opf course be carfull when adding cooling sytems sealant. Not good for partially plugged radiators.

Kevin

87 Turbo Intercooled Raider, roller cam, torsen rear diff, LSD front diff, lockup auto with modified converter, V6 brakes, low transfer case gears...