Trick Flow® Twisted Wedge® Track Heat® 185 Cylinder Heads for Ford 4.6L/5.4L 2V (EACH) TFS-51910003-M38

Combustion Chamber Volume (cc): 38 Intake Runner Volume (cc): 185cc Exhaust Runner Volume (cc): 93cc Cylinder Head Style: Assembled Cylinder Head Material: Cast aluminum Intake Valve Diameter (in.): 1.840 in. CNC-Machined Combustion Chamber: Yes CNC-Machined Intake Runner: No CNC-Machined Exhaust Runner: No Combustion Chamber Style: Twisted Wedge® Intake Port Location: Standard Exhaust Port Shape: D-port Exhaust Port Location: Standard Spark Plug Style: Angle Intake Valves Included: Yes Exhaust Valves Included: Yes Exhaust Valve Diameter (in.): 1.450 in. Valve Springs Included: Yes Maximum Valve Lift (in.): 0.580 in. Outside Diameter of Outer Spring (in.): 1.000 in./1.060 in. Damper Spring Included: No Number of Springs Per Valve: Single Retainers Included: Yes Retainer Material: Chromoly steel Locks Included: Yes Lock Style: 7 degree Valve Stem Seals Included: Yes Valve Stem Seal Style: Positive stop Rocker Arm Studs Included: No Rocker Arms Included: No Rocker Arm Nuts Included: No G