Vortec Bowtie Cylinder Head
These are GM Performance parts most powerful cast iron cylinder heads designed for street or racing applications in the 400-450 HP range. As an upgraded production head, they come with bigger valves, a thicker deck surface, and a 65cc combustion chamber, which offers tremendous low-lift flow numbers. They offer you fast-burn performance in an affordable cast iron head that is often used for short track racing applications.
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