: Hey Doug, would you assume the buick valves
: would be ok for a camshalf with aprox.
: .460-.467 lift? Is it possible to change
: anything by a few thousandths to get it
: closer in spec with a stock /6 valve lenth?

: A number of SL6 Racers use the Buick valves
: with lifts beond .470 and they work fine.
: The key is to have all the correct springs,
: retainers and locks (keepers) which go with
: the valve. The spring's Installed Height
: must be checked (seat pressure) Also be sure
: the guides are sized correctly seeing that
: different valves can have different stem
: diameters for oil clearance.
:
: To correct for the shorter Buick valve length,
: all you can do is mill the head. (this helps
: give back some pushrod adjuster turns)
: The other thing I have seen done is to
: "sink" the valve seat into the
: head deeper. This is NOT a good thing to do
: because it reduces flow.
:
: Let's face it, you have more to work with if
: the valve is a little longer, not shorter.
: DD

: Hey Doug, I was planning on milling the head
: .070,sounds like In your perspective, I will
: be ok.I think the valve size is about where
: I would like it.My machinist doesnt think
: going really big on the intake side is
: smart, and I kinda agree. Exhaust is usually
: where the hp gains are. Dealing with a whole
: different engine now, you tell me whats more
: important,intake or exh.? Thanx a Million

: To correct for the shorter Buick valve length,
: all you can do is mill the head. (this helps
: give back some pushrod adjuster turns)
: The other thing I have seen done is to
: "sink" the valve seat into the
: head deeper. This is NOT a good thing to do
: because it reduces flow.
:
: Let's face it, you have more to work with if
: the valve is a little longer, not shorter.
: DD

: Hello All,
: Even though milling the head would allow the
: pushrod to reach, the rocker geometry may be
: affected by the shorter valves, no? Maybe
: lash caps could be used to make the buick
: valves the same heigth as stock? I've seen
: lash caps in .060" and .080"
: Dave
:
: <snip

:
: ARE LASH CAPS SAFE? HOW MUCH MORE EXSPENSIVE IS
: IT? wHAT EXACTLY WOULD HAPPEN IF THE VALVE
: IS SHORTER, LOSS OF RPM? LOSS OF TQ? LOSS OF
: HP? pOSSIBLY BETTER, WHO KNOWS? tHANX