Trick Flow GenX® 225 cathedral port cylinder heads are fully CNC-machined to significantly increase the performance of 6.0L LS2 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 225 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

Dart Cylinder Head, Pro1 Chevrolet Big Block, 325.00 CC Port, 121.00 CC Chamber, Each

Dart Cylinder Head, Pro1 Chevrolet Big Block, 325.00 CC Port, 121.00 CC Chamber, Each

$3,106.31

Dart Cylinder Heads Parts, Valves, Springs, Retainers, Locks, Guideplates, Studs, 2.400/1.800 in. Valves, 1.625D Spring 20 Deg Pro 1, Kit

Dart Cylinder Heads Parts, Valves, Springs, Retainers, Locks, Guideplates, Studs, 2.400/1.800 in. Valves, 1.625D Spring 20 Deg Pro 1, Kit

$837.73

AFR LS1 7 degree Machined Hardened Steel Valve Locks - Stock Style Bead Lock, 1 Pair

AFR LS1 7 degree Machined Hardened Steel Valve Locks - Stock Style Bead Lock, 1 Pair

$6.24

Edelbrock Cylinder Head, HIP'd, T7 Heat Treated, Aluminium, Assembled, Natural, For Chevrolet, LML Duramax Diesel, Each

Edelbrock Cylinder Head, HIP'd, T7 Heat Treated, Aluminium, Assembled, Natural, For Chevrolet, LML Duramax Diesel, Each

$2,947.73

AFR Cylinder Head, 20° SBF 205cc Competition Package, 72cc chamber, Stud Mount, No Parts, Pair

AFR Cylinder Head, 20° SBF 205cc Competition Package, 72cc chamber, Stud Mount, No Parts, Pair

$4,214.47

Trick Flow Cylinder Head, High Port 225, CNC Comp Port, Assy, 70cc CNC Chambers, 1.46" Spr, Ti Retain, Small For Ford, Each

Trick Flow Cylinder Head, High Port 225, CNC Comp Port, Assy, 70cc CNC Chambers, 1.46" Spr, Ti Retain, Small For Ford, Each

$3,314.70