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Which 243's are these

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Old 02-04-2016, 11:45 PM
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Question Which 243's are these
I just bought them and was told they were off an 02 vette and yes the say 243
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Old 02-04-2016, 11:47 PM
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Here's another
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Old 02-04-2016, 11:49 PM
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And another
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Old 02-04-2016, 11:50 PM
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One says 62 and the other says 63
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Old 02-05-2016, 01:45 AM
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Originally Posted by N2Ojunky
I just bought them and was told they were off an 02 vette
02 vettes came with 241 heads

02 z06 vettes came with 243 heads

Pull a couple valves and weigh them, if they are the lightweight hollow/sodium valves (ls6 engine) then they could have only came from 2 vehicles

2002-2004 corvette z06
2004-2005 ctsv

If they are the solid valves then they could have came from a number of engines like...

2001 corvette z06
Ls2 gto
Ls2 Corvettes 05-07
Gen 4 truck engines

Either way 243 heads are good, not all 243 heads are ls6 heads. Ls6 heads are only the 02-04 z06 and 04-05 ctsv.
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Old 02-05-2016, 10:29 AM
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So there is no difference in...
The castings, Flow #'s, or Valve sizes?
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Old 02-05-2016, 10:37 AM
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Originally Posted by N2Ojunky
So there is no difference in... The castings, Flow #'s, or Valve sizes?
No. They are all basically the same
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Old 02-05-2016, 10:58 AM
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Originally Posted by Burken01
02 vettes came with 241 heads

02 z06 vettes came with 243 heads

Pull a couple valves and weigh them, if they are the lightweight hollow/sodium valves (ls6 engine) then they could have only came from 2 vehicles

2002-2004 corvette z06
2004-2005 ctsv

If they are the solid valves then they could have came from a number of engines like...

2001 corvette z06
Ls2 gto
Ls2 Corvettes 05-07
Gen 4 truck engines

Either way 243 heads are good, not all 243 heads are ls6 heads. Ls6 heads are only the 02-04 z06 and 04-05 ctsv.
LS4's came with them as well, oddly enough.
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Old 02-05-2016, 12:17 PM
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Originally Posted by spawne32
LS4's came with them as well, oddly enough.
Nice

They are a great budget head no doubt.
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Old 02-10-2016, 07:34 AM
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Ok the guy just told me they were off of an 01 Vette, can anyone tell what springs they have?
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Old 02-10-2016, 07:42 AM
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Full blue valve springs = 2001 ls6, does not have the lightweight valves.
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Old 02-10-2016, 07:52 AM
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Originally Posted by DietCoke
Full blue valve springs = 2001 ls6, does not have the lightweight valves.
Ok, what lift are the springs good to?
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Old 02-10-2016, 08:39 PM
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Originally Posted by N2Ojunky
Ok, what lift are the springs good to?
stock.
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