Never had a failure yet using decent quality caphead bolts with ARP hard
washers. Beware of hydraulic lock when refitting to a wet engine - the stud
holes are blind. If the rocker ratio is increased over stock, then steel
posts are preferable.
Jon Wood
----- Original Message -----
From: "Wes Dayton" <oilyrag@hsrca.org.au>
To: "Friends of Triumph" <fot@autox.team.net>
Sent: Friday, September 26, 2003 10:21 AM
Subject: Pedestal Studs
> Having recently gone to roller rockers, a new head (stronger springs) and
> billet alloy pedestals, I've just experienced my first broken pedestal
bolt.
>
> We got by on the weekend because we found a 3/8" Allen-Head cap screw, cut
> it to length (as best we could figure out - you all know what race-day
> cobbling together is like) and it got us through.
>
> I am now looking for a more permanent solution and I've heard all sorts of
> arguments/ideas. I'm tempted to increase the size to 7/16" and also
tempted
> to use an ARP solution of some sort (if for no other reason we can get
them
> here in Australia).
>
> I've got a copy of the ARP catalog, but can't figure what's the right
> solution. Can anyone aim me in some sensible direction - either 3/8" or
> 7/16". What are the opinions?
>
> Thanks - Wes dayton
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