Jayzvette

01' valves are not sodium filled

white2001s10

iTrader: (4)

Did anyone go and measure the pre-2002 Z06 valves to verify?
All I have is 2002 and up.

KCFormula

iTrader: (4)

The '02 LS6 valves are longer because the base circle on the cam is smaller and they needed the longer valve to make up the difference for preload. They figured it would be cheaper to make a longer valve since they were changing them anyway than to make a longer pushrod.

DAPSUPRSLO

iTrader: (14)

So the ls6 2001 valves are the same exact valves that are in a ls1 then???

vettenuts

iTrader: (4)

Yes they are.

PREDATOR-Z

Ok guys, shoot me, 0.6 mm (the . escaped).
If you run LS1 cam with LS6 (02>04) valves, you'll need 7.375 p-rods, 7.40's too much preload, 7.35's too noisy (I ran those previously, then went with .045 Cometic and it was fine).