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Generation III Internal Engine
can someone id my engine please

Generation III Internal Engine 1997-2006 LS1 | LS6

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can someone id my engine please

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Old

11-10-2007, 12:22 PM

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can someone id my engine please

my engine number is 12559378 thanks

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Old

11-10-2007, 12:33 PM

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12559378 is a 5.7L LS1 block from 1999-2000, possibly early 2001.

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11-10-2007, 12:38 PM

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my heads are stamped 241 does that help

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11-10-2007, 12:48 PM

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maro69 is right.

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11-10-2007, 12:50 PM

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241's are center bolt LS1 heads.

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11-10-2007, 01:18 PM

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Early 2001

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11-10-2007, 01:28 PM

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thanks all

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