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Diff in 12615361 and 12582714?

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Diff in 12615361 and 12582714?

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Mar 12, 2009 | 02:33 AM

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From: Valdosta, georgia

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Diff in 12615361 and 12582714?

Whats the diff in these two heads they are both L92 right? What is the diff really. Thanks.

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Mar 12, 2009 | 06:34 AM

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From: Lapeer, MI

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12581714 - old part number based off production part numbers
12615361 - GM performance Parts part number that replaces 12581714, bare head, no valves or springs

Same L92 heads, different numbers. Very common for GM to do this for tracking purposes.
The same bare head is used for the L92, L76 and LS3.

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Mar 12, 2009 | 07:39 PM

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Ahh so the same heads are used on the L92 escalades as they are on the new LS3?

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Mar 12, 2009 | 08:19 PM

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They did have two different casting processes for a while, the LS3 was called I believe green sand casting. Other than that, the combustion chambers and ports are the same.

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Jun 7, 2010 | 03:34 AM

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Another run at the top...

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12581714, 12582714, 12615361, bare, gm, gm12615361, head, heads, kind, l92, l92l76, lift, number, part, performance

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