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02 firebird vs 04 GTO engines...same, similar?

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Old 02-14-2007, 03:44 PM
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Default 02 firebird vs 04 GTO engines...same, similar?

im looking at two motors for a hybrid project, and am trying to deduce ALL the differences bewteen the two.

i believe the cams, intake and 241 heads were the same. I know the t-body is the same in each application. I know GTO headers were different.

can anyone here id for me other significant, or even seemingly insignificant chagnes? the hybrid list hasnt had any data for me.

thanks
Old 02-14-2007, 05:46 PM
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gto's have ls6 pcv system and am ls1 sticker on the TB i think thats about it
Old 02-14-2007, 05:54 PM
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thanks....any idea if they use air injection? manifolds dont appear to have a location for it.

thanks
Old 02-14-2007, 06:21 PM
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I thought there was a size difference in CI? or is that the 05' and newer?
Old 02-14-2007, 08:55 PM
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the 05 is the 6.0 but the 04 is a a ls1 5.7
Old 02-14-2007, 10:18 PM
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the GTO engine was rated at 350/350 for whatever reason from the factory
Old 02-15-2007, 08:44 AM
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No air injection. Its the same engine, just rated "right".
Old 02-15-2007, 10:23 AM
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All `01-`04 LS1 Engines are identical except for Exhaust manifolds and Oilpans for the different Chassis (GTO F-Body Vette) Oh and the Vettte has the electronic TB.




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