GMT 800 & Older GM General Discussion 2006 & Older Trucks | General Discussion

Ls1 block question?

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Old Oct 31, 2005 | 01:32 PM
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Default Ls1 block question?

Does anybody know how to tell what year block I have. My first LS1 block has some small differences over my new LS1 block. My new block also says 5.7 on the back of it but my other LS1 block doesnt.

Last edited by Yellowsierra; Oct 31, 2005 at 04:45 PM.
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Old Oct 31, 2005 | 04:46 PM
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I guess not to many people know. LOL. Thats ok I was just curious anyway.
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Old Oct 31, 2005 | 05:03 PM
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Have you tried LS1 Tech? They might be able to help you out.
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Old Oct 31, 2005 | 05:40 PM
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Maybe this will help you...

Gen III Small Block
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Old Oct 31, 2005 | 06:07 PM
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Originally Posted by Jethro_3
Maybe this will help you...

Gen III Small Block

Thanks for the link theres alot of good info.
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