Trick Flow Twisted Wedge 11r Competition 190cc Cylinder Head, Sbf, 66cc Chambers, Titanium Retainers

Something great just got better! Trick Flow has taken its track-proven Twisted Wedge design and, using advanced 3D solid modeling and CAD tools, plus a couple decade’s worth of racing experience, has made it even more potent for serious performance enthusiasts and racers. Trick Flow’s new Twisted Wedge® 11R 190 cylinder heads feature 11° intake and 13° exhaust valve angles and a restructured combustion chamber arrangement for more airflow and performance potential. The new high velocity, race-inspired runners have been optimized for today’s popular bore and stroke combinations. Premium certified materials and components, along with the finest CNC tooling, are used to ensure uncompromising quality and durability, dimensional accuracy, and balanced flow from port-to-port. Fully machined castings increase strength and project a great-looking billet-like appearance. Twisted Wedge 11R 190 heads with CNC Street Ported runners are great entry-level CNC heads combining fully CNC-machined runners and combustion chambers with a standard resolution surface finish for significant performance gains. Twisted Wedge 11R 190 heads with CNC Competition Ported runners feature fully CNC-machined runners and chambers with a premium high resolution finish for ultimate performance. The heads are a direct replacement for previous Twisted Wedge heads and work with all Twisted Wedge specific pistons.
Part Number: TFS-5261T661-C02   Combustion Chamber Volume (cc): 66 Intake Runner Volume (cc): 190cc Exhaust Runner Volume (cc): 66cc Cylinder Head Style: Assembled Cylinder Head Material: Cast aluminum Camshaft Style: Hydraulic roller Intake Port Shape: Rectangular Intake Valve Diameter (in.): 2.055 in. CNC-Machined Combustion Chamber: Yes CNC-Machined Intake Runner: Yes CNC-Machined Exhaust Runner: Yes Combustion Chamber Style: Twisted Wedge® Intake Port Location: Standard Exhaust Port Shape: Square Exhaust Port Location: Standard Intake Valves Included: Yes Exhaust Valves Included: Yes Exhaust Valve Diameter (in.): 1.600 in. Valve Springs Included: Yes Maximum Valve Lift (in.): 0.650 in. Outside Diameter of Outer Spring (in.): 1.295 in. Damper Spring Included: Yes Number of Springs Per Valve: Dual Retainers Included: Yes Retainer Material: Titanium Locks Included: Yes Lock Style: 7 degree Valve Stem Seals Included: Yes Rocker Arm Studs Included: Yes Rocker Arm Nut Thread Size: 7/16 in.-20 Rocker Arms Included: No Rocker Arm Nuts Included: No Guideplates Included: Yes Guideplate Pushrod Size: 5/16 in. 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 Cylinder Head Color: Natural Steam Holes Drilled: No Oiling Style: Through pushrod Machined for O-Ring: No Heat Crossover: No   Quantity: Sold individually. Notes: Competition ported fully CNC, non-emissions head. The new Trick Flow twisted Wedge 11R heads are machined for ½” head bolts; for customers with blocks that are machined for 7/16” head bolts, the use of a set of TFS-51400419 Head bolt bushings is required. Set-up for hydraulic roller cam shaft only.

Install Instructions