The ZZ4 crate engine has gained cult status among vintage auto connoisseurs and muscle car enthusiasts. It first appeared in 1996, and has become the longest-running ZZ-series engine ever produced, ...
General Motors' ZZ4 350 is arguably the most popular crate motor ever sold. According to Nicky Fowler of Scoggin-Dickey, a leading GM Performance Parts dealer, the General has sold somewhere between ...
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