LS2 vs LS6 heads. Are they the same?
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LS2 vs LS6 heads. Are they the same? The casting # for LS6 is 243. The casting # for LS2 heads is 317. Are they infact different heads? How? Are their flow characteristics identical? If I bolt-on an LS2 head is it the same as bolting on an LS6 head?
Originally Posted by MNR-0
The casting # for LS6 is 243. The casting # for LS2 heads is 317. Are they infact different heads? How? Are their flow characteristics identical? If I bolt-on an LS2 head is it the same as bolting on an LS6 head?
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From: Australia
Originally Posted by crainholio
Yes. Chamber, intake ports, exhaust ports. No. No (valves are hollow on the LS6 assemblies).
Yes - they are different heads
No they are not similar specs - they have different flow characteristics due to different port intake and exhaust volumes plus chamber volumes
Is there a link someone can guide me to for exact specs on each, incl. CFM?
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From: Australia
Hmmm. Then I guess in OZ we lucked out with the VZ Monaro and you guys luck out with the '05 GTO as they both have #317 castings - based off the Vortec6000?
The C6 must be a different piece of kit even though the '05 GTO is classified the same - aka. LS2.
Good to know as I have tentatively secured a set of #317 castings that are off the LS2 here in OZ. Unless they are as good as the #243 I will have to keep looking.
The C6 must be a different piece of kit even though the '05 GTO is classified the same - aka. LS2.
Good to know as I have tentatively secured a set of #317 castings that are off the LS2 here in OZ. Unless they are as good as the #243 I will have to keep looking.
Originally Posted by VINCE
I am glad that is cleared up. The C6 has LS6 castings with better valves.
Originally Posted by MNR-0
Well the LS2 over here is 317 castings. Hmmm. Unless my information is wrong and my workshop doesn't know ****.
OK. Another question. Is the #243 casting better than #317?
OK. Another question. Is the #243 casting better than #317?
