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Generation III Internal Engine 1997-2006 LS1 | LS6
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Need help with a head casting #

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Old 12-11-2008, 09:44 PM
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Default Need help with a head casting #
I have a set of heads with an 806 casting # what motor did they come on?
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Old 12-12-2008, 09:00 AM
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97-98,5.7l
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Old 12-12-2008, 12:53 PM
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I thought 853 was the early ls1 casting # or am I thinking about trucks?
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Old 12-12-2008, 01:08 PM
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806 are 97-98 perimeter bolt heads, 853 are 99-00 center bolt heads, 862 is the 99-up 4.8/5.3 casting.
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Old 12-12-2008, 02:45 PM
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Thanks thats the info I needed
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