Originally Posted by MR_P_BODY
Originally Posted by cudaman1969
Originally Posted by DoubleD
I have had really good luck when sleeving a block - never had one leak - but I also have the block ceramic sealed up at the diesel engine shop - not sure what the product is but they pump a ceramic slurry through the water jackets of the block after the sleeve is installed.

Would like to know what that sealer is


B1maxx said it was 640 Locktite..I dont know the number but I will take his word.. I have had a
couple sleeved but didnt know the sealer
wave


The 640 to me is just part of the installation not necessarily a sealer. An old timer told me a side benefit was filling of the microscopic voids (left after boring) to help in heat transfer out of the sleeve. I don't like freezing them they get frost on them prior to installing and I don't want all that water contaminating the 640.