Take performance to the next level with Trick Flow Twisted Wedge ® 11R 227 cylinder heads for small block Ford. They feature the ultimate development of the Twisted Wedge innovation, featuring TFS’ most efficient combustion chamber design and valve layout that moves the intake valves away from the cylinder walls to reduce shrouding and significantly improve flow at higher lift. Other features include:

• 11 ° intake / 13 ° exhaust valve angles

• 227cc CNC Competition Ported intake runners

• 66cc CNC Competition Ported exhaust runners

• 2.080 "/ 1.600 " stainless steel intake / exhaust valves

• 56cc CNC-profiled combustion chambers

• Trick Flow by PAC Racing dual valve springs

• Titanium retainers

Twisted Wedge ® 11R 227 Dyno Results

Airflow Results Twisted Wedge ® 11R with 227cc CNC Competition Ported Runners

Test Engine: 12.18:1 compression 427 c. i. d. with Trick Flow Twisted Wedge ® 11R 227 cylinder heads( TFS-5261T561-C04), Trick Flow Track Max ® hydraulic roller camshaft( TFS-51403005), 1.72 ratio roller rocker arms, Trick Flow R-Series 11R 227 Port-Matched intake manifold( TFS-52500114-C04), Hooker headers with 1 7 ⁄ 8 " primaries, 3 " dual exhaust with Flowmaster mufflers.

. 600 " 337 227. 650 " 342 229

Tests conducted at 28 " of water( pressure). Bore size: 4.125 "; exhaust with 1 7 ⁄ 8 " pipe.

Engineered for Performance! New heads are just one part of the Serious Horsepower formula. To complete it, you’ ll need some more components.

Roller Rocker Arms

• Heat-treated CNC-machined bodies

• Needle-bearing fulcrums

• Reliefs for valve spring clearance

• Available in 1.6 and 1.72 ratios for 3 / 8 " or 7 / 16 " studs

• Sold in sets of 16 with polylocks

R-Series 11R 227 Port-Matched Intake Manifolds

• CNC Competition Ported runners port-matched to Twisted Wedge 11R 227 cylinder heads

• 3,500-7,500-plus RPM range

• Available in carbureted and carb-style EFI versions

Track Max ® Hydraulic Roller Camshafts

• Dyno proven to significantly increase power

• Made from premium billet steel blanks

• Hydraulic roller designs available up to 250 °/ 254 ° duration and. 595 "/. 595 " of lift

Scan here for more details.

2505DUTF

Some parts are not legal for use in California or other states with similar laws / regulations. Please check your state and / or local laws / regulations.