Trick Flow Twisted Wedge 11R Competition CNC Ported 227cc Cylinder Head, SBF, 56cc Chambers

Additional Images

Your Selected Product

Was: $1699.99
Sale: $1489.99
Save: 12%
Save: $210.00

Starting at $93/mo or 0% APR with

Qty:
Free Basic Shipping
IN STOCK: only 4 remaining
TFS-5261T561-C04
Twisted Wedge 11R 227 cylinder head represent Trick Flow's ultimate development of the Twisted Wedge innovation, featuring Trick Flow's most efficient combustion chamber design. The combustion chamber and valve layout move the intake valves away from the cylinder walls to reduce valve shrouding, significantly improving flow at higher lift. Shallow 11° intake/13° exhaust valve angles improve piston-to-valve clearance for high lift cams and reduce chamber volume for improved compression and efficiency. High velocity runners are optimized on the flow bench and dyno proven to outperform the competition on hydraulic roller camshaft engines.

Premium materials and components, along with world-class CNC processes, guarantee uncompromising quality and durability, dimensional accuracy, and balanced flow from port-to-port. Machined castings increase strength and have a billet-like appearance. Additional features include CNC-profiled combustion chambers, 2.080"/1.600" stainless steel intake/exhaust valves, Trick Flow by PAC Racing valve springs, and titanium retainers. The Twisted Wedge 11R 227 head has CNC Competition Ported runners with a premium high- resolution finish for ultimate performance. They are compatible with stock pistons with lower lift cams plus all Twisted Wedge specific pistons with cams up to .600-inches of valve lift.

Note: This includes only 1 head add 2 into your cart for a pair!

*Trickflow also offers a intake manifold that is port matched to this head to take care of the guesswork! see PN: TFS-52500114-C04 (Carbureted) or TFS-52500115-C04 (EFI)

Description

Head Specs:
Part Number: TFS-5261T561-C04
Combustion Chamber Volume (cc): 56
Intake Runner Volume (cc): 227cc
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.): 2.080 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: No
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 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. Set-up for hydraulic roller cam shaft only.

Key Features:
227cc intake ports and 56cc combustion chambers
2.080 in. stainless steel intake valves
1.600 in. stainless steel exhaust valves
.625" thick deck
Titanium retainers
11 degree intake valve angle
13 degree exhaust valve angle

  • Have a question? Ask the Pros
  • 877-514-9494Mon - Fri 8:00 AM - 4:00 PM PST