Chevy's Late-90s Vortec Heads Are A Small Block Secret Weapon - Jalopnik

Chevy's Late-90s Vortec Heads Are A Small Block Secret Weapon - Jalopnik
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It's worth pointing out that Chevy's Vortec heads have performance DNA, featuring 170-cc intake ports borrowed from the Gen-2 LT4 small-block's aluminum head design. However, the valves were less agg… [+1482 chars]

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