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Eagle1 07-19-2004 06:44 PM

zz4 or not
I just purchased a so-called zz4 short block partial engine on ebay. I am not sure if it is a real zz4. The back of the block has a 10243880 casting number. The front (where the alternater goes &where the head meets the block) says 1M0424 under that it says 3P04. I thought it should say zz4. Any help with this would be GREATLY appreciated!

Mike_82 07-19-2004 07:18 PM


10243880...350...95-00...2 or 4 bolt main...Vortec truck, Gen.I crate motors and "ZZ4", roller cam, one piece rear seal

Eagle1 07-19-2004 07:20 PM

Does that mean it is from a truck or zz4? Or is it all the same? Sorry I am new to this!

Mike_82 07-19-2004 07:24 PM

It could be either. i dont know if there is a way to tell.

Eagle1 07-19-2004 07:31 PM

I guess the numbers in the front should tell but I don't know where to look those numbers up.

Jared 07-19-2004 11:34 PM should have the front numbers listed on it.

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