ZL-1 Block Marking Help

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**SuperNovaSS** · #16 05-11-2013, 09:37 PM

Max,

The main caps are aluminum and I assume they are aftermarket. They are simply stamped 1,2,3 and 4 to mark their positions. The other ZL1 block I have has cast "964" caps like cast iron blocks have.

The oil filter is a System 1 unit with a removable mesh filter element. These are still available but I'm not sure if the design is the same as this older model.

I was told this block was purchased from a Chevy dealer 69 but the original purchaser has passed away so there is no way to verify.

Thanks,

Jason

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