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Hard Blok water jacket filler

7198 Views 10 Replies 8 Participants Last post by  icanfixall
I am slowly piecing my 7.3 back together from a scored rear cylinder, that dumped diesel into my oil, so far I have a fresh .020 block and a turbo reciprocating assembly, that I still have to massage and assemble, I wonder if I fill the coolant passages half way with Hard Blok filler after I done the boring and honing, will it be an issue? Why did I wait till now to think of this???:icon_rolleyes:
always happens this way. since these engines are a little thin I don't see any problems doing this. anyone else thought of this? also anyone have a good set of bare casting heads?
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I use Evans coolant already, I kind of agree that the top portion of the cylinder needs the strenght so a 50% fill might not be as beneficial. as far as the cooling goes I dont worry about that much, I never had problems after I used Evans, alot of the heat in the lower end of the engine is absorbed by the oil wich inturns goes into the cooling system via the oil cooler.
If your doing boring better do sleeves too..........
too late boring done did. now punched out .020, originally the block was purchased new in 1997 and I put 120,000 until now, always had a fresh change of coolant for the first 4 years. Evans the remaining years.
yea I know new sleeves would be better but I think I can slide. I know the history of the block since new.


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