Quote
The MLS gaskets will come with a printed sealant where they need it. The contours of the gasket provide the sealing everywhere else.
The surface finish of the head and block are smoother than used with conventional composite gaskets.


okay oldcolt, but you didnt throw in your opinon of this engine as usual

I found this:

MLS head gaskets
Sealant use may be required when retrofitting MLS head gaskets to engines which were not originally produced with MLS head gaskets, or when using MLS head gaskets on engines that have not been properly prepared. For proper coolant and oil sealing, MLS head gaskets require surface finishes of 30 RA (Roughness Average) or finer, this is because the elastomeric coating on the sealing surfaces of MLS head gaskets is approximately .001" thick which is too thin to seal leak paths in the peaks and valleys of rougher (RA30+) finishes

from here:
http://www.crankshaftcoalition.com/wiki/Head_gasket

I dont know. I think this one looks like it may need extra help. Question is "Hylomar blue XP" or "mopar" or what?
http://www.roeracing.com/ProductCart/pc/viewPrd.asp?idcategory=243&idproduct=448

The gasket arrived, I forgot to read the brand.


These guys seem to be convinced that these gaskets need help sealing http://board.moparts.org/ubbthreads/showflat.php?Number=5733918


Not sure why that is so.

Last edited by generation_one; 06/03/10 12:43 PM.
1989 5 door montero 3.0 auto
stock original Japanese
about 200k miles