[Spridgets] Aluminum Head torque Specs?

[Hal Faulkner]

Brian,
Torque specs are for the studs.  It depends on the quality and size of your
fasteners.  ARP studs get tightened down more than stock....  The idea is
to get enough pre-load on them that they stretch "just enough."   The head
being aluminum should not have any effect on the torque required.
You should be able to find valve lash specs on the cam mfgr's web site.
There is an adjustment required when using 1.5 rockers, *IIRC,* it is to
increase the clearance by a factor of 1.5/1.3 =   1.15. Works out to be
about 3-4 thou. Vizard walks you through it in the yellow book,
unfortunately I can't get to my copy right at the moment.
HTH
Hal

On Sun, Aug 9, 2015 at 8:20 PM, brian S via Spridgets <
spridgets at autox.team.net> wrote:

> hey all,
>
> I was hoping someone out there would happen to know the torque specs for
> and aluminum head.
> It's a 1275, I believe a Pierce head. I've run it about 500 miles or so
> since it was installed so,
> I figured that I should re-torque the head.
> I went through my personal archives and didn't see any mention of it.
> I've sent an email to the guy that built it, but haven't had a reply in a
> few days,
> and I know many of you are running them, so I thought I would ask the
> guru's of the Spridgets list.
>
> Also,
> I should check the valve lash also,
> any ideas of the clearance for that?
> It has a Kent 276 cam and Titan 1.5 roller rockers.
> It runs great, although the rockers do seem a bit noisy.
>
> Thanks!
>
> Brian S.
> Bugeyeracer finally resto'ed!
> Thanks to Frank C.!
>
>
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