High Port® 225 and 240 Cylinder Heads for Small Block Ford Some parts are not legal for sale or use in California or other states with similar laws/regulations—see pg. 2 for details. WARNING: For Proposition 65 information, see pg. 2 Trick Flow has developed several fully CNC-ported versions of the High Port cylinder heads specifically for large cubic inch, large power adder, big shot nitrous oxide, and other mega-power combinations. High Port 225 and 240 cylinder heads for small block Ford have all of the same features of Fast As Cast® High Port heads—unique valve spacing, raised exhaust runners, extra strong castings, thick decks, superior cooling, reshaped intake runner entries, extra material for porting, raised valve cover rails, and excellent airflow—plus top-of-the-line CNC Competition Ported runners with a high resolution surface finish for maximum airflow and power over the entire RPM range. Cylinder heads are available fully assembled or as bare castings. Sold individually. High Port 225 Heads, CNC Competition Ported Runners, Assembled TFS-5171T010-C01 58cc combustion chambers, 1.560" dual valve springs, and titanium retainers, 225cc intake runners TFS-51710012-C01 70cc combustion chambers and 1.460" dual valve springs, 225cc intake runners TFS-5171T012-C01 70cc combustion chambers, 1.460" dual valve springs, and titanium retainers, 225cc intake runners TFS-5171T013-C01 70cc combustion chambers, 1.550" dual valve springs, and titanium retainers, 225cc intake runners High Port 240 Heads, CNC Competition Ported Runners, Assembled TFS-5171T016-C02 67cc combustion chambers, 1.550" dual valve springs, and titanium retainers, 240cc intake runners TFS-5171T018-C02 76cc combustion chambers, 1.550" dual valve springs, and titanium retainers, 240cc intake runners Specifications Material: A356-T61 aluminum Combustion Chamber Volume: 10-C01: 58cc CNC-profiled 12-CO1/13-CO1/14-C01: 70cc CNC-profiled 16-C02: 67cc CNC-profiled 18-C02: 76cc CNC-profiled Intake Port Volume: 10-C01/12-CO1/13-CO1/14-C01: 225cc CNC Competition Ported 16-C02/18-C02: 240cc CNC Competition Ported Intake Port Location: Stock Intake Port Dimensions: C01: 1.380" x 2.240", C02: 1.310" x 2.300" : 95cc CNC Competition Ported Exhaust Port Location: Raised .750" from stock Exhaust Port Dimensions: 1.520" x 1.620" Exhaust Gaskets: Fel-Pro 1481 for diagonal bolt pattern headers Fel-Pro 1487 for inline bolt pattern headers Exhaust Valve Diameter: 1.600" (10-C01: TFS-51700212; 12-C01/ 13-C01/14-C01/18-C02: TFS-51700213; 16-C02: TFS-52400212) Exhaust Valve Seat: Ductile iron (TFS-51700272) Valve Angles: 20° Valve Guide Material: Bronze alloy (TFS-51700252) Valve Seals: Viton® fluoroelastomer (TFS-30400454) Valve Seat Angles: 45° x multi-angle Valve Spring Pocket Diameter: 1.615" Valve Spring Cups: 1.480" (TFS-51400434) Valve Spring I.D. Locators: 1.550" (TFS-21400440) Valve Spring Retainers: 12-CO1: 7° x 1.500" o.d. chromoly steel (TFS-31400424) T12-CO1: 10° x 1.500" o.d. titanium (TFS-214T0420) 10-CO1/13-CO1/14-C01/16-C02/18-C02: 10° x 1.550" o.d. titanium (TFS-214T0525) Valve Stem Locks: 7° machined steel (TFS-51400444) 10° machined steel with lash cap (TFS-52400444) Valve Springs,10-CO1: 1.560" o.d. dual spring with damper (TFS-16318-16) 240 lbs. @ 2.000" installed height 600 lbs. @ 1.280" open 500 lbs. per inch rate .700" maximum valve lift Valve Springs, 12-CO1: 1.460" o.d. dual spring with damper (TFS-16315-16) 134 lbs. @ 1.800" installed height 405 lbs. @ 1.200" open 452 lbs. per inch rate .600" maximum valve lift Valve Springs, 13-CO1/14-C01/16-C02/18-C02: 1.550" o.d. dual spring with damper (TFS-16324-16) 240 lbs. @ 1.920" installed height 550 lbs. @ 1.270" open 460 lbs. per inch rate .680" maximum valve lift Guideplates: 5/16" (TFS-51700623), 3/8" (TFS-51700624) Rocker Arm Studs: 7/16" (TFS-51400614) Rocker Arms: TFS-51400510 (1.6 ratio, 3/8" studs) TFS-51400511 (1.72 ratio, 3/8" studs) TFS-51400520 (1.6 ratio, 7/16" studs) TFS-51400521 (1.72 ratio, 7/16" studs) Minimum Bore Diameter: C01: 4.000", C02: 4.125" Cylinder Head Bolts: TFS-92005 Head Gaskets: TFS-51494060-040, TFS-51494080-040, or TFS-51494155-040 Pushrod Length: Longer than stock required Spark Plugs: Autolite 3924 NOTE: Valve cover rail is raised .400" over stock. Viton® is a registered trademark of DuPont Performance Elastomers. Airflow Results High Port 225 with 70cc Combustion Chambers Lift Value Intake Flow CFM Exhaust Flow CFM .100" 72 58 .200" 146 117 .300" 216 162 .400" 268 210 .500" 305 234 .600" 322 247 .700" 335 257 Tests conducted at 28" of water (pressure). Bore size: 4.030"; exhaust with 2" pipe. Airflow Results High Port 240 with 67cc & 76cc Combustion Chambers Lift Value Intake Flow CFM Exhaust Flow CFM .100" 72 58 .200" 146 117 .300" 222 162 .400" 281 210 .500" 310 234 .600" 330 247 .700" 343 257 Tests conducted at 28" of water (pressure). Bore size: 4.125" CNC-profiled combustion chambers; exhaust with 2" pipe. 735 Horsepower Using Trick Flow High Port ® 240 Cylinder Heads! Mike Petralia of Hardcore Horsepower and Dyno Testing in Franklin, Tennessee built a carbureted, 438 cubic inch small block Ford. To feed that big motor the air it needed, he called on Trick Flow for a pair of High Port 240 cylinder heads. The results? 735 horsepower and 621 lbs.-ft. of torque—naturally aspirated! TFS-5171T010-C01
