blakss

iTrader: (4)

Got a set of heads from member on here a while back. Sent them out to get ported and milled but the guy I got them from said there was one or two bent valves and they didnt tell me anything what do you guys think? I also had them on a flow bench so if there was a problem ,it would have been caught? Also I was wondering do all the ctsv's come wih the sodium filled valves?any help is greatly appreciated. Thanks

raven154

iTrader: (14)

LS6 243's have the sodium filled valves, the LS2 243's don't

blakss

iTrader: (4)

Thanks I gotta check . Is there any markings or another way to tell?

itsslow98

iTrader: (18)

Only way to tell is to measure the length of the valves I think.

blakss

iTrader: (4)

They are longer ?

scatillac

iTrader: (12)

The LS6 valve weights are 74 gms for the intake and 64 gms for the exhaust. The 243 LS2 (and LS1) valves are ~25 gms heavier.

Also, the intake valve is longer but the exhaust valve is not.

blakss

iTrader: (4)

Ok so found out it was off an 06 Cts-V and by that time they had replaced the ls6 with the ls2 right? so im guessing there standard valves. :/ gunna look into swapping them out. Also if i ran the lighter longer valves (at least intake side) i heard that it is the equivalent of running a 1.8 ratio rocker because they are a little longer is it true? again thanks you guys for the help and opinions are always welcomed.

itsslow98

iTrader: (18)

no that is not true about the 1.8 rocker.