Originally Posted by don stocker
I think that the nut seals the tube when it is tightened into the block.

That nut is a one-time-use item. If someone tries to use it again coolant will leak into the crankcase in most situations. There is another way to run the line- - - -IM me for instructions, it involves modifying some brass fittings.
Jerry


"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
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