ls2 heads in ls1?
TECH Resident
Joined: Apr 2003
Posts: 859
Likes: 0
From: here, ny
ok, that still doesn't point out that the LS2 heads and '01 LS6 heads r the same, while all 3 may have the same casting #, it doesn't mean that they're all alike, the '02+ LS6 heads have the lighter valves
The biggest difference between the LS2 heads(799) and the LS6 heads (243) is the valves. The LS2 heads have solid valves where the LS6 had hollow/sodium filled valves.
If you have an LS1 that is 02 - 04 you will have the LS6 manifold, if its 97 - 01 you will have the LS1 intake unless you have the 01 ZO6 and then you will have then LS6 intake manifold.
What the LS6 valves give you is lighter valve train and stability in the higher RPM range (6500 - 7K rpm) Since a lot of people know how good the 243/799 casting heads flow for 350 is a steel and jump on it. I would personally have them checked just to be safe. Do not pass them up they are a great buy, and you can upgrade your manifold later on.
If you have an LS1 that is 02 - 04 you will have the LS6 manifold, if its 97 - 01 you will have the LS1 intake unless you have the 01 ZO6 and then you will have then LS6 intake manifold.
What the LS6 valves give you is lighter valve train and stability in the higher RPM range (6500 - 7K rpm) Since a lot of people know how good the 243/799 casting heads flow for 350 is a steel and jump on it. I would personally have them checked just to be safe. Do not pass them up they are a great buy, and you can upgrade your manifold later on.
lol TECH Resident
Joined: Apr 2003
Posts: 859
Likes: 0
From: here, ny
u don't get it, do u??? i'll say it 1 more time... '01 LS6 heads and LS2 heads are the same... '02+ LS6 heads have different valves... if the valves are different, the heads therefore are different... last time, good bye...
You can have 2 heads of the same casting give you different hp curves depending on the valves and springs used if you use the same equipment on the 01 243s and the 04 243 or the 06 799 the hp curve is the same on the same engine give or take up to 1 - 3 hp.
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