LS2 Heads or LS6 Heads???
Thread Starter
Burning Brakes
Joined: Mar 2003
Posts: 874
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From: Bonita CA
LS2 Heads or LS6 Heads???
Are there any significant differences between the LS2 and the LS6 heads? If different, which has more flow potential? I'm trying to decide what stock heads to put on to a forged LS2 shortblock that will eventually be supercharged. My goal is a 500 RWHP sleeper that is dependable and will spank those pesky Cobra's!
Le Mans Master
Joined: Sep 2003
Posts: 6,276
Likes: 227
From: Farmington CT
Cruise-In VII Veteran
the casting # on the ls2 heads are '243', i think they are the 02-04 ls6 heads, let me do some research
here's the link stating the ls2 head is the 02-04 ls6 head
http://www.ls1tech.com/forums/showpo...55&postcount=1
here's the link stating the ls2 head is the 02-04 ls6 head
http://www.ls1tech.com/forums/showpo...55&postcount=1
Last edited by SteveDoten; Oct 4, 2005 at 12:09 AM.
Team Owner
Joined: Mar 1999
Posts: 22,025
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From: At the beach in little Rhody
I think the LS1 heads are the Z06 casting with stainless valves, not the more expensive sodium filled valves. I have also read elsewhere that the LS6 heads with sodium valves are no longer available and there is a bulletin that was sent out to dealers about problems with valve train harmonics and the lightweight valves.
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Verdad Gallardo
Team Owner
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From: Buy USA products! Check the label! Employ Americans
Originally Posted by vettenuts
I think the LS1 heads are the Z06 casting with stainless valves, not the more expensive sodium filled valves. I have also read elsewhere that the LS6 heads with sodium valves are no longer available and there is a bulletin that was sent out to dealers about problems with valve train harmonics and the lightweight valves.
Safety Car
Joined: May 2002
Posts: 3,615
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From: waterloo ontario
St. Jude Donor '08
LS2 heads is the LS6 head-minus the lightweight valves. And i too heard there was an issue with the lightweight valves. I saw a set with only 4000km and the valve stems were full of scoring marks. I can get you a set of brand new complete LS6/LS2 heads for $750?
