Trick Flow Twisted Wedge 11R Bare 205cc Cylinder Head, SBF, 56cc Chambers, No Parts

Cylinder Head Style: Bare, no parts Cylinder Head Material: Aluminum Cylinder Head Finish: Natural Combustion Chamber Volume (cc): 56 CNC-Machined Combustion Chamber: Yes Intake Runner Volume (cc): 205cc Exhaust Runner Volume (cc): 66cc CNC-Machined Intake Runner: Yes CNC-Machined Exhaust Runner: Yes Combustion Chamber Style: Twisted Wedge® Intake Port Shape: Rectangular Intake Port Location: Standard Exhaust Port Shape: Square Exhaust Port Location: Standard Intake Valves Included: No Intake Valve Diameter (in): 2.080 in. Exhaust Valves Included: No Exhaust Valve Diameter (in): 1.600 in. Valve Springs Included: No Retainers Included: No Locks Included: No Lock Style: 7 degree Valve Stem Seals Included: No Rocker Arm Studs Included: No Rocker Arm Nut Thread Size: 7/16-20 in. Rocker Arms Included: No Rocker Arm Nuts Included: No Guideplates Included: No Accessory Bolt Holes Drilled: Yes Intake Valve Angle: 11 Exhaust Valve Angle: 13 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: Competition ported fully CNC machined, non-emissions heads. Trick Flow twisted Wedge 11R heads are machined for 1/2 in. head bolts; for customers with blocks that are machined for 7/16 in. head bolts, the use of TFS-51400419 head bolt bushings is required.