Quote:
Originally Posted by 51 MERC-CT
Probably a number of "best" ones but I have always used non hardening Permatex.
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We do the opposite, we use the Permatex #1, this is the "hard-setting" one. Been using this on all our builds, not only the Flatheads!
Never a single (major) issue so far!
Thanks, Gary in N.Y.
P.S. Would also strongly recommend against using any anti-freeze on the initial run, but be careful in the "cold" weather. Most minor leaks will take care of themselves for the most part! We occasionally see some water coming up the studs on the dyno, they are usually sealed up by the end of the session!