NeverT00fast

iTrader: (4)

Hi folks. I'm doing a H/C swap soon and the the valves that's coming in the pre-assembled heads are the OE LS2 valves. Will it be worth the trouble or moving my sodium-filled LS6 valves with 11k miles on them over to the new heads or should I just stick with the new LS2 valves? Thanks in advance!!

white2001s10

iTrader: (4)

If you can pull a couple of the LS2 valves out and measure them and throw them on a scale, then I'll sure have an opinion. I'd like to know what the differences are myself.
I have the specs for LS6 valves already.

redtail2426

iTrader: (10)

i will save you the trouble,i weighed my new ls2 valves already,if i remember correctly the intake was about 100-101 and the exhaust was about 75 or so.The ls2 valves are .6 mm shorter then the ls6ers.

Paynful

The LS6 intake valve is a hollow stem and will be a lot lighter and have better valvetrain dynamics than the LS2. The exhaust valves are a wash although the sodium filled will improve heat transfer.

JL ws-6

iTrader: (50)

I'm surprised to hear that there's any differnence at all... I figured being that the heads are the same, they were probably built on the same assembly line.. I figured production was just ramped up when that the 243 casting became the standard head on the performance engines.

algws6

iTrader: (3)

i thought the ls6 valves were titanium and sodium filled.

MSURacing

iTrader: (1)

The LS6 valves weigh in at 73 grams!!!! They are stainless hollow stems, you can pick up a set brankd new cheap from Katech. They have both the intakes and exhausts available in a kit for cheap compared to dealer prices!!!! Give Jason a call, he can hook you up.

MSURacing

iTrader: (1)

The intakes are 73 grams. The exhaust are in the 60's

firefighter

Either way you should never swap valves without a valve job to make sure they seat properly.

GuitsBoy

iTrader: (4)

Well, i think the valve angles are the same, i think all you'd have to do is lap them in with lapping compound available at any local autoparts store.

white2001s10

iTrader: (4)

LS6 intake = 73 grams, exhaust = 65 grams
LS1 intake = 101 grams, exhaust = 94 grams

31% lighter on the exhaust is hardly a wash in my book.