[Tigers] Valve train geometry help

[Smit, Theo]

Only if the new valve seats put the face of the valve in the same
place... You might want to check that. Best plan is to set up a pair of
valves with some light springs and adjustable pushrods, and then
determine the optimum pushrod length that centers the roller travel on
the valve tip.

Theo

-----Original Message-----
From: tigers-bounces+theo.smit=dynastream.com at autox.team.net
[mailto:tigers-bounces+theo.smit=dynastream.com at autox.team.net] On
Behalf Of Alan Zeni
Sent: September 4, 2008 4:49 PM
To: tiger
Subject: [Tigers] Valve train geometry help

I was wondering if anyone else has run into this issue - I had my heads
rebuilt and had larger intakes put in.  Late model valves were used.
These valves have a longer tip above the retainer.  Now, taking both
measurements from a catalog and micing the two style valves, there seems
to be about a .154 difference in length.  With the 1.6 ratio roller
rockers that I am using, it seems to me that if I take the tip
difference and divide by the ratio (.09625), I could install pushrods
that are .1 shorter and eliminate all of the issues with grinding down
the tips.  Do my calc's sound kosher?
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