Perfect for all high performance street/strip, racing, and marine applications, Trick Flow PowerPort® 365 cylinder heads for big block Chevy deliver exceptional power potential and competition level durability. Features include rectangular intake runners for strong mid- to high-rpm performance, fully CNC-profiled, heart-shaped combustion chambers, CNC bowl blended valve seat transitions, 24 degree intake valve angles with 4 degree side cants for additional airflow volume, adjustable guideplates, and premium quality, high-strength aluminum castings. PowerPort 365 heads are best suited for 500 plus cubic inch extreme performance engines. The heads include top-of-the-line CNC Competition Ported runners with a high resolution finish for maximum airflow and power and are assembled with the highest quality valvetrain components for ultimate endurance in all operating conditions.Cylinder heads are available fully assembled or as bare castings. Sold individually.

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