243 Heads
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243 Heads
The heads came off a 2005 GTO, they have 10k on them, and have brand new L92 springs (I think they are good to .550" Lift).
I bought them to put on my 6.0, but opted for the L92 heads instead, and swapped the dual springs that were on the 243's onto the L92's.
I would like $400 plus shipping OBO
I bought them to put on my 6.0, but opted for the L92 heads instead, and swapped the dual springs that were on the 243's onto the L92's.
I would like $400 plus shipping OBO
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I am pretty sure they will work on a 5.3, the bore size is 4", 6.0L LS2 Heads.
I'm not sure exactally what they would do for compression.... But flow would be improved.
I'm not sure exactally what they would do for compression.... But flow would be improved.
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Originally Posted by Quik
they put 243 heads on 5.3s in the NNBS also LS4[5.3] come with 243 heads and i think 6.2 springs arent no special then stockers.
$400 +shipping or best offer
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Originally Posted by 04BlackSilverado
I think the casting #'s are different, but the cast itself is very similar as far as flow and combustion chamber size to the new 5.3's. Yes the springs are nothing special, but they are included
$400 +shipping or best offer
$400 +shipping or best offer