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Re: zz3 engine
No, he means ZZ3. This was the predecessor to the ZZ4.
The ZZ3 was a 345 horsepower "High Output" GM crate motor. The ZZ3 has aluminum heads, aluminum intake manifold, high lift roller cam, forged steel crank, 4-bolt mains, "pink rods", and hypereutectic pistons with a compression ratio of nearly 10:1.
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