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skull and cross bones stamp on 243 heads??

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Old Sep 18, 2013 | 03:55 PM
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Default skull and cross bones stamp on 243 heads??

just bought a set of 243 heads off ebay and both heads have a skull and crossed bones stamp on them,anybody recognize this stamping??
Attached Thumbnails skull and cross bones stamp on 243 heads??-skull.jpg  
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Old Sep 18, 2013 | 04:02 PM
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That's pretty cool, never seen it before. I'm betting someone put it there for ***** and giggles.
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Old Sep 18, 2013 | 04:04 PM
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Are they ported? Valve job? Any work at all?
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Old Sep 18, 2013 | 04:07 PM
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Originally Posted by DEFYANT
Are they ported? Valve job? Any work at all?
nope,just stock 243's off a 5.3..
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Old Sep 18, 2013 | 04:09 PM
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243s aren't from a L33, 799s are. 243s are from an LS6 or LS2.
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Old Sep 18, 2013 | 04:09 PM
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Originally Posted by 2002 blue z28
That's pretty cool, never seen it before. I'm betting someone put it there for ***** and giggles.
that's kinda what I was thinkin,or maybe the company I bought them from stamps them so they know they are theirs in case of a warranty claim..i think im gonna ask..
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Old Sep 18, 2013 | 04:13 PM
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Originally Posted by DEFYANT
243s aren't from a L33, 799s are. 243s are from an LS6 or LS2.
that's not what the description said,and yes 243's came on some 4.8's and 5.3's,look it up
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Old Sep 18, 2013 | 04:15 PM
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Do other heads have markings like this? It seems like a good way to identify who manufactured or worked on those heads.
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Old Sep 18, 2013 | 05:24 PM
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I talked to the vendor I bought the heads from and they said they use that stamping on all their blocks and heads to verify its a piece they sold for warranty reasons..Case closed! lol
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Old Sep 18, 2013 | 06:51 PM
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Originally Posted by LT1IROC-Z
I talked to the vendor I bought the heads from and they said they use that stamping on all their blocks and heads to verify its a piece they sold for warranty reasons..Case closed! lol
That's good to know. What kind of warranty came with your heads?
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Old Sep 18, 2013 | 09:33 PM
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Originally Posted by The_Bird
That's good to know. What kind of warranty came with your heads?



not much lol.. 14 days money back, buyer pays return shipping.
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Old Sep 18, 2013 | 10:09 PM
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that's not what the description said,and yes 243's came on some 4.8's and 5.3's,look it up
Getting into semantics here. 243s and 799s are the same exact thing. Only difference is what engine they came from.

If they came from LS2s or LS6s they are called 243s, if they came from other engines they are called 799s.
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Old Sep 18, 2013 | 10:09 PM
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that's not what the description said,and yes 243's came on some 4.8's and 5.3's,look it up
Getting into semantics here. 243s and 799s are the same exact thing. Only difference is what engine they came from.

If they came from LS2s or LS6s they are called 243s, if they came from other engines they are called 799s.
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Old Sep 18, 2013 | 10:12 PM
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Originally Posted by redtan
Getting into semantics here. 243s and 799s are the same exact thing. Only difference is what engine they came from.

If they came from LS2s or LS6s they are called 243s, if they came from other engines they are called 799s.
5.3s did come with 243s. End of story. You're incorrect.
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Old Sep 18, 2013 | 10:17 PM
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Originally Posted by 01ssreda4
5.3s did come with 243s. End of story. You're incorrect.
Indeed. A good friend of mine owns a completely stock 2012 silverado and his 5.3 has 243 clearly stamped on both heads.
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Old Sep 19, 2013 | 12:57 AM
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Originally Posted by LT1IROC-Z
that's not what the description said,and yes 243's came on some 4.8's and 5.3's,look it up
Correct! i have a 09 gmc with the 5.3 and it has 243 heads!
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Old Sep 19, 2013 | 06:30 AM
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5.3s did come with 243s. End of story. You're incorrect.
Indeed. A good friend of mine owns a completely stock 2012 silverado and his 5.3 has 243 clearly stamped on both heads.
Correct! i have a 09 gmc with the 5.3 and it has 243 heads!
Cool, didn't know that. Wonder what the point of the 799s is then when they're the same head and the new truck engine now come with either those or 243s...
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Old Sep 19, 2013 | 07:29 AM
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Looks like Lunati Voodoo symbol.
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Old Sep 19, 2013 | 07:31 AM
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Different manufacturing plant, different mold, etc...
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Old Sep 19, 2013 | 07:50 AM
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I've seen trucks with one 799 head and one 243 head...
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