LS2/LS6 head comparrision

**finallygot1** · 02-15-2007, 01:51 PM

Have a chance to buy a set of LS2 heads, is the only difference between them and the LS6 the sodium filled valves? Is this anything I should be concerned about? The LS2 are 243 casts......

Thanks in advance

**Mr. Luos** · 02-15-2007, 01:53 PM

I thought they were the exact same. Valves could be a difference.

I know the castings are the same.

**9T8W66** · 02-15-2007, 03:15 PM

You are correct the difference is in the Valves.
The sodium filled ones are lighter.

**mullenh** · 02-17-2007, 06:04 AM

aren't the ls2's set for a 4 inch bore also?

**Wheeler99WS6** · 02-17-2007, 08:57 AM

Anyone tried the LS2 heads yet? What is the difference in the gains over LS6?

**finallygot1** · 02-17-2007, 09:22 AM

I really expect them to be just about the same or even a little less because of the sodium filled valves. The springs, valve size and castings are the same, from what I understand.
I only went with the LS2 because I found a set of low mile take offs, at a reasonable price. Also I was very comfortable with the seller.