Take performance to the next level with Trick Flow Twisted Wedge ® 11R cylinder heads for small block Ford . The heads feature TFS ’ most efficient combustion chamber and CNC-ported runner combination for maximum airflow and power capability . The 11 ° intake / 13 ° exhaust valve angles improve piston-to-valve clearance and the innovative Twisted Wedge chamber design relocates the valves to reduce shrouding . The fully machined castings increase strength and have a great-looking billet-like appearance . Premium components ensure uncompromising quality and durability .

Twisted Wedge ® 11R cylinder heads are available in an entry-level form with 170cc or 190cc CNC Street Ported intake runners or in an ultimate performance version with 190cc , 205cc , or 227cc CNC Competition Ported intake runners .

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 muffl ers .

New heads are just one part of the horsepower formula . To make it complete , you ’ re going to need some other components .

Track Max ® Hydraulic Roller Camshafts

Give your small Ford an even bigger power boost with a Track Max camshaft . Available in several hydraulic roller designs up to 250 °/ 254 ° duration and . 595 "/. 595 " of lift , they are dyno proven to produce significant power increases over the entire RPM range .

Roller Rocker Arms

These aluminum roller rockers are excellent for use with Trick Flow and other aftermarket heads , plus factory Ford heads , too . They feature heat-treated CNC-machined bodies , premium needle-bearing fulcrums , roller tips , and a machined relief for improved 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

These A319 aluminum manifolds feature a specially made CNC Competition Ported runner treatment for perfect port alignment on Twisted Wedge 11R 227 cylinder heads . The spider-type single-plane design with raised plenum floor puts the powerband in the 3,500-7,500-plus RPM range . Available in carbureted and carb-style EFI versions .

Lift Value Intake Flow CFM Exhaust Flow CFM . 100 " 71 60 . 200 " 139 111 . 300 " 208 150 . 400 " 269 185 . 500 " 309 212 . 600 " 337 227 . 650 " 342 229

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

Trick Flow pays contingency in the NHRA on all Trick Flow cylinder heads .

TrickFlow . com • 1-330-630-1555

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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 .