Head Gasket

[AL in NY]

If you use the Best Graphite 509g, Rich Falluca's recommendation is NOT to use any type of sealer, that way the graphite "bonds" to the block and cylinder head metal. Don't know, as I am not a metallurgist, just going by Rich's recommendation and he should be in a position to "know".

[Y-Blockhead]

Originally Posted by AL in NY

If you use the Best Graphite 509g, Rich Falluca's recommendation is NOT to use any type of sealer, that way the graphite "bonds" to the block and cylinder head metal. Don't know, as I am not a metallurgist, just going by Rich's recommendation and he should be in a position to "know".

As does Charlie Yapp at the Secrets of Speed Society;

"ABOUT HEAD GASKETS:
Our Best Brand head gaskets do not require "sealant" if the decks are flat, near-new, fresh, unscored and clean. Sealant is built into the gasket.
Name goes to up to sky. Start Torque at 25 pounds, using the sketch above, in numerical sequence and increase incrementally 5 pounds at a time to a final torque of 55 pounds."

I have a Snyder's 5.5 on my '30 Town Sedan using a Best 573G gasket. No sealant, no problems.

[denniskliesen]

Originally Posted by AL in NY

If you use the Best Graphite 509g, Rich Falluca's recommendation is NOT to use any type of sealer, that way the graphite "bonds" to the block and cylinder head metal. Don't know, as I am not a metallurgist, just going by Rich's recommendation and he should be in a position to "know".

Exactly what I did when installed my 6:1 head over 3,000 miles ago. No leaks, no weeping around the edges. Something AER also recommended at the time was a dab of RTV around the stud at the base of the stud. No coppercoat or anything else for sealer on the surface of the head gasket.