Author Topic: 454 head bolt sealer  (Read 3800 times)

Offline Mike1973

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454 head bolt sealer
« on: October 04, 2013, 11:07:23 am »
yesterday I installed the heads on my 454, rebuilt heads, surfaced and the such.  This is the first time I used ARP thread sealer and I'm a little nervous now that I'm all torqued down.  Here's why I'm in question, since I've never used this thread sealer before I applied a little to the threads on the heater hose inlet on the intake as well as the new bypass hose fitting on the front of the intake.  This was a week ago and the little bit that squeezed out is really still pretty much as "wet" as when I installed both fittings.  When applying the sealer to my head bolts I applied it liberally enough to fill all thread grooves.  Maybe I'm just use to other products but ARP sealer seems somewhat weak or water-like compared to the near paste-like products such as Permatex? 

Next question, IF....IF I was to start over on sealing the head bolts what would be the thought on this process: remove one head bolt at a time, spray with break clean, re-apply a thread sealer I'm more familiar with, reinstall the bolt, re-torque.  Of course repeating this with all bolts.  As further information, my head gaskets are Felpro 508 SDs (black with the blue sealing bead.) 

Am I concerned for nothing or what?  Thanks in advance for any thoughts.

Online bd

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Re: 454 head bolt sealer
« Reply #1 on: October 04, 2013, 11:30:26 am »
ARP Teflon paste sealer is a superb product!  I use it exclusively for head bolts, intake bolts, and water pump bolts and never have a problem.  However, regardless of the sealer used, clean threads are crucial.  Threaded holes should be chased and thoroughly cleaned prior to assembly for consistent torque and clamping force.  Conversely, chasing head bolt threads with a die is never recommended, because the bolt threads are rolled.  New head bolts are always recommended - cleaning with a wire wheel is workable in a pinch.  As long as you followed proper torquing sequence in multiple stages during assembly, you should enjoy good results for your labor.
« Last Edit: October 04, 2013, 11:33:07 am by bd »
Rich
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