Part Number:
TFS-K525-432-370
Duration at 050 inch Lift:
221 int./225 exh.
Advertised Duration:
275 int./279 exh.
Valve Lift with Factory Rocker Arm Ratio:
0.499 in.t/0.510 exh.
Intake Manifold Included:
No
Timing Chain and Gears Included:
Yes
Cylinder Head Style:
Assembled
Cylinder Head Material:
Aluminum
Cylinder Head Finish:
Natural
Combustion Chamber Volume (cc):
53
CNC-Machined Combustion Chamber:
Yes
Intake Runner Volume (cc):
170cc
CNC-Machined Intake Runner:
Yes
CNC-Machined Exhaust Runner:
Yes
Intake Port Location:
Standard
Exhaust Port Location:
Standard
Intake Valves Included:
Yes
Intake Valve Diameter (in):
2.020 in.
Exhaust Valves Included:
Yes
Exhaust Valve Diameter (in):
1.600 in.
Valve Springs Included:
Yes
Outside Diameter of Outer Spring (in):
1.460 in.
Damper Spring Included:
Yes
Number of Springs Per Valve:
Dual
Retainer Material:
Chromoly steel
Valve Stem Seals Included:
Yes
Rocker Arm Studs Included:
Yes
Rocker Arm Nuts Included:
Yes
Rocker Arm Nut Thread Size:
7/16-20 in.
Guideplates Included:
Yes
Valve Covers Included:
No
Accessory Bolt Holes Drilled:
Yes
Valve Guides Included:
Yes
Valve Guide Material:
Bronze
Valve Seats Machined:
Yes
Valve Seat Material:
Ductile iron
Oiling Style:
Through pushrod
Save cash and take the guesswork out of building a winning engine combination with Trick Flow’s Twisted Wedge 11R top-end engine kits. Tuned by Trick Flow engineers to deliver optimum horsepower and torque on a small block Ford, these kits are built around a set of dyno-proven Twisted Wedge 11R 170 cylinder heads (TFS-52515301-C00). Also included is a Track Max® hydraulic roller camshaft (TFS-51403001), 1.6 ratio roller rocker arms (TFS-51400520), true roller timing chain set (TFS-51478520), chromoly pushrod set (TFS-21407050), cylinder head bolt kit (TFS-92005), and a complete engine gasket set (TFS-51400904). On Trick Flow’s engine dyno, the test engine made 432 horsepower and 370 lbs.-ft. of torque with these parts installed!
Warranty