Trick Flow GenX® 215 cathedral port cylinder heads are fully CNC-machined to significantly increase the performance of 5.7L LS1 engines. Trick Flow engineers altered the valve angles from 15° to 13.5° to decrease valve shrouding, increase mid-lift airflow, and improve rocker arm-to-valve cover clearance. Top-of-the-line CNC Competition Ported runners have a premium high resolution surface finish for maximum flow and performance. The spark plugs were relocated in the CNC-profiled combustion chambers to enhance mid-lift airflow and increase the rigidity of the casting for extreme horsepower applications. Material was added at the rocker arm mounting points to increase high-rpm valvetrain stability. Trick Flow GenX 215 cylinder heads are emissions-legal under CARB E.O. #D-747 for 1997-present GM vehicles with 4.8L, 5.3L, 5.7L, and 6.0L engines. They are available fully assembled or as bare castings. Sold individually.

More From This Category

Trick Flow Cylinder Head, PowerPort A460 340, Fast As Cast , Assy, 87cc, 2.35" Int, Ti Ret, 18-Bolt, For Ford 429/460, Each

Trick Flow Cylinder Head, PowerPort A460 340, Fast As Cast , Assy, 87cc, 2.35" Int, Ti Ret, 18-Bolt, For Ford 429/460, Each

$4,216.60

Trick Flow Cylinder Head, PowerPort 270, Max Wedge, CNC Comp Ported, Assembled, 1.46" Springs, Big For Chrysler, Mopar, Each

Trick Flow Cylinder Head, PowerPort 270, Max Wedge, CNC Comp Ported, Assembled, 1.46" Springs, Big For Chrysler, Mopar, Each

$3,488.70