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heads and intake swap? help

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Old 07-29-2007, 09:27 PM
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Default heads and intake swap? help

ok i have heard of people doing the ls6 heads and intake swap on the ls1. is there any way of identifying if a set of ls6 heads or ls6 intake has been installed?
Old 07-29-2007, 11:56 PM
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the casting number on the heads. It should be visible on the passenger side. Mine are 243's.
Old 07-30-2007, 01:56 AM
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ok yours are 243's. now are those ls6 or ls1?
Old 07-30-2007, 08:21 AM
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243 = LS6 head (very few LS6 heads have the sodium valves that came with the Z06)
241 = LS1 head

There are part numbers for the LS1 and LS6 intakes as well but I don't have them right now.

EDIT: typo the first time

Last edited by radkon; 07-31-2007 at 06:43 AM.
Old 07-30-2007, 03:47 PM
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Originally Posted by radkon
243 = LS6 head (very few LS6 heads have the sodium valves that came with the Z06)
214 = LS1 head

There are part numbers for the LS1 and LS6 intakes as well but I don't have them right now.
You got that half right but 214 is not an ls1 casting.

243 Heads = Ls6 Heads from the ls6 or ls2 motor.
806,853 or 241 Heads = Ls1 Heads

806 = 97-98 Vettes and Fbody's
853 = 99-00 Vettes and Fbody's
241 = 01-up Ls1 Vettes, Fbody's and GTO's
Old 07-30-2007, 08:46 PM
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thanx for all the help, im running the 853 heads. i thought i might have ls6 heads, im trying to figure out why my car is soooooo darn fast.
Old 07-31-2007, 06:42 AM
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Originally Posted by connexion2005
You got that half right but 214 is not an ls1 casting.

243 Heads = Ls6 Heads from the ls6 or ls2 motor.
806,853 or 241 Heads = Ls1 Heads

806 = 97-98 Vettes and Fbody's
853 = 99-00 Vettes and Fbody's
241 = 01-up Ls1 Vettes, Fbody's and GTO's
Whoops typo I meant 241s




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