Hi guys.
I´ve just picked my heads back from the machine shop, went checking it and found some "odd" stuff.
First: putting a straight edge on the top of the stems, all exaust valve tips are higher than intakes. The difference is around 0,039".
As I got the heads assembled, I measured the instaled valve height from the TOP of the retainers to the spring seats.
On one of the heads, 6 valves were at 1,7716", 1 at 1,7815" and 1 at 1,8012".
On the other head, there were also 6 at 1,7716", one at 1,7618" and one at 1,7815".
The difference at the retainers seems to be small, but at the tips, a bit too high.
Oh, I'm running Edelbrocks 5877 springs, wich should have a installed height of 1,65".
I don't believe the retainers are 0,12" thick, are they?
This is the first time I'm assembling an engine, and I don't really know what I should check next.
So, should ALL the valve stem tips be at the same height?
If they should, considering the mentioned heights at the retainers, what would be the right move?
Grinding the tips?
And about the valve height?
Is it ok, or should I run shims?
Just to mention, the cam is a SUM-K6901, 218°/228° @0.050", and .441" lift both intake and exaust.
Thanks!
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