Trickflow Genx Ls2 Head, 225cc Intake, Chromoly Retainers, Max Lift .650

Serious horsepower for your LS2-based engine, heads sold individually.

These Trick Flow GenX® 225 cathedral port cylinder heads for GM 6.0L LS2 engines are fully CNC-machined to significantly increase the performance of LS2-powered cars and trucks. 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. Material was added at the rocker arm mounting points to increase high-rpm valvetrain stability. 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. Top-of-the-line CNC Competition Ported runners have a premium high resolution surface finish for maximum flow and performance. Cylinder heads are available fully assembled or as bare castings.
Part Number: TFS-30610001-C02 Part Type: Cylinder Heads Product Line: Trick Flow® GenX® 225 Cylinder Heads for GM LS2 UPC: 842645107177 Cylinder Head Style: Assembled Cylinder Head Material: Aluminum Cylinder Head Finish: Natural Combustion Chamber Volume (cc): 65 CNC-Machined Combustion Chamber: Yes Intake Runner Volume (cc): 225cc Exhaust Runner Volume (cc): 80cc CNC-Machined Intake Runner: Yes CNC-Machined Exhaust Runner: Yes Combustion Chamber Style: Heart Intake Port Shape: Cathedral Intake Port Location: Standard Exhaust Port Shape: Oval Exhaust Port Location: Standard Spark Plug Style: Angle Intake Valves Included: Yes Intake Valve Diameter (in): 2.055 in. Exhaust Valves Included: Yes Exhaust Valve Diameter (in): 1.575 in. Valve Springs Included: Yes Maximum Valve Lift (in): 0.650 in. Outside Diameter of Outer Spring (in): 1.300 in. Damper Spring Included: No Number of Springs Per Valve: Dual Retainers Included: Yes Retainer Material: Chromoly steel Locks Included: Yes Lock Style: 7 degree Valve Stem Seals Included: Yes Rocker Arm Studs Included: No Rocker Arms Included: No Rocker Arm Nuts Included: No Guideplates Included: No Valve Cover Mounting Style: Centerbolt Accessory Bolt Holes Drilled: Yes Intake Valve Angle: 13.50 Exhaust Valve Angle: 13.50 Valve Guides Included: Yes Valve Guide Material: Bronze Valve Seats Machined: Yes Valve Seat Machine Style: 3-angle Valve Seat Material: Ductile iron Steam Holes Drilled: No Oiling Style: Through pushrod Machined for O-Ring: No Heat Crossover: No Quantity: Sold individually. Notes: Must be used with roller rocker arms. CARB EO Number: D-747 (pdf). To see a list of qualifying vehicles, enter CARB EO Number D-747 Emissions: California EO Approved

Instruction Sheets