Trick Flow Twisted Wedge 11R® 205 and 227 HD Cylinder Heads: Built for Big Boost and Big Nitrous

When big boost or big nitrous hits are part of your small block Ford’s future, the cylinder heads you use need to be up to the challenge. Trick Flow Twisted Wedge 11R® 205 and 227 HD Cylinder Heads were engineered for exactly that kind of abuse.

As the ultimate development of the legendary and innovative Twisted Wedge® design, these heavy-duty heads feature upgraded Manley Severe Duty stainless steel valves to withstand the extreme cylinder pressures and stresses generated by modern power adders. That means whether you’re cranking up the boost or spraying hard off the line, these heads will handle the punishment and keep making power.

The rest of the Twisted Wedge 11R® winning formula remains intact. Reinforced castings provide exceptional strength and have a sleek billet-inspired appearance. The combustion chamber and valve layout move the intake valves away from the cylinder walls to reduce valve shrouding, significantly improving flow at higher lifts. Shallow 11-degree intake and 13-degree exhaust valve angles improve piston-to-valve clearance for aggressive camshaft profiles while shrinking chamber volume to help boost compression and efficiency. High-velocity runners are optimized on the flow bench and dyno proven to outperform the competition on hydraulic roller engines. For racers and hardcore street enthusiasts chasing every last bit of horsepower, Trick Flow’s signature CNC Competition Ported surface finish guarantees proper dimensional accuracy with balanced flow from port-to-port.

Specifications
• CNC Competition Ported 205cc or 227cc intake and 74cc exhaust ports
• 54cc or 64cc CNC-profiled combustion chambers
• 2.080-inch intake and 1.600-inch exhaust Manley Severe Duty stainless steel valves
• 1.275-inch Trick Flow by PAC Racing dual valve springs
• Ductile iron valve seats and bronze alloy valve guides
• Titanium retainers and 7-degree steel valve stem locks

Trick Flow Twisted Wedge 11R® 205 and 227 HD cylinder heads are available in two combustion chamber volumes to make it easy to tailor compression ratio to your combination. The heads are compatible with stock pistons and lower-lift cams as well as all Twisted Wedge-specific pistons with camshafts up to .600 inches of lift. The heads are available fully assembled or as bare castings and are sold individually.

SEE THE TRICK FLOW TWISTED WEDGE 11R® 205 AND 227 HD CYLINDER HEADS FOR SMALL BLOCK FORD