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What is the story on Yenko ZL-1 engines? I remember seeing a red '69 Camaro on eBay (and discussed here) with what they described as a Yenko ZL-1. Are these the blocks with "YENKO" cast into the front of the block? Would love to learn more about these engines.

Rich

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Rich,

Yenko took up where Chevy left off with the ZL-1 engine program, sometime in the mid-70s. The Yenko ZL-1 program was ran out of the old building at Canonsburg, (Yenko Chevrolet had moved to Mc Murray) with Bill “Smithy” Smith in charge.

I have seen two types of Yenko imprints on their engines, the word Yenko or the Yenko crest. The blocks came two ways, either with or without water passages. From what I was told most, were installed in stock cars or boats, with a few NOS old ones still floating around. Ken Barnhart just recently installed one in his ZL-1 Camaro.

I have never seen documentation of a Yenko ZL-1 block being installed in an automobile by Yenko.