[Fot] Valve Springs - GT6, Spitfire, Tr6

[Mike Harmuth]

Hi Scott, I ran into the same problem with those springs, an APT (Kent?)
BK74 cam and 1.55 GT6 roller rockers (net 0.5022 valve lift). I kept
everything the same but used a 1.50 Spitfire roller rocker (net lift .486)
and bought some space. That set up is OK up to ~8K, broke an inner spring
when the engine revved to 8500 at the Glen after the flywheel bolts sheared.

Let me know what you come up with.

thanks
mike h

On Thu, Oct 31, 2019 at 2:02 PM Scott Janzen via Fot <fot at autox.team.net>
wrote:

> I’m trying to accommodate a high lift cam/rocker combination and the Isky
> springs (VWE005/SP116) I’ve been using will be right at full bind with this
> combo.
> What are you all using - I’m looking for something that can handle about
> 0.54” of net valve lift.
>
> Let me know what spring mfr/part number you are using and I’ll take it
> from there.
>
> Thanks!
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