We start with a very common, 440-horsepower, 383ci stroker engine using production Chevy Vortec iron cylinder heads and swap them out for a set of CNC-ported aluminum heads. Naturally, they make ...
They also both use an aluminum block and L92/LS3 cylinder heads. While both the LS3 and LSA make use of higher-flow rectangular port heads, compared to cathedral port heads found on earlier Gen ...
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