[A26B]

Originally Posted by -=Jeff=-

...........I might pull them off to reseal them this winter but was curious if you need to put any sealer on the round 'buttons' on the ends........

From my experience, when tearing down original engines, the red Permabond A136 used to seal the cam cover/cylinder head, is also on the Cam Bore Plugs, but may not have been intentional.

When we manufactured the new plugs, it was obvious that the plug seal design is very intricate with a fine edge to both the inside & outside. It doesn't appear to me that the design would have required any sealant. Permabond is anaerobic and the seal has such a thin sealing element, I don't see the Permabond adding anything to the sealing properties.

So, for my 2cents, I would recommend nothing. The Cam Cover requires a special, non-shimming sealant to not alter the cam journal bore diameter. Any other sealing substance, like Permatex or silicone that could shim the cam cover would work to the detriment of the designed camshaft journal-to-bore designed clearances. Not a good thing!