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-5261T561-C02
Combustion Chamber Volume (cc): 56
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.
