PowerPort® A460 340 and 360 Cylinder Heads for Ford 429/460 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’s potent PowerPort A460 340 and 360 cylinder heads for Ford 429/460 are ideal for use in drag racing, monster trucks, tractor pulling, and other ultra high power, large cubic inch engine combinations. Notable features include big block Chevrolet-style exhaust port openings and bolt pattern and a heavy duty 18-bolt mounting pattern. The PowerPort 340 heads feature a Fast As Cast® runner design that duplicates the port shape and profile of CNC-ported heads, delivering near- CNC-ported airflow, power, and performance for about the same price as regular cast cylinder heads. The PowerPort 360 heads feature CNC Competition Ported runners with our top-of-the-line, premium high resolution surface finish for maximum airflow and performance in all-out naturally aspirated or forced induction applications. Cylinder heads are available fully assembled or as bare castings. Sold individually. PowerPort A460 340 Heads, Fast As Cast Runners, Assembled TFS-5451T802-M83 83cc combustion chambers, 18-bolt pattern, and 2.350" intake valves, 340cc intake runners TFS-5451T802-M87 87cc combustion chambers, 18-bolt pattern, and 2.350" intake valves, 340cc intake runners PowerPort A460 360 Heads, CNC Competition Ported Runners, Assembled TFS-5451T8T5-C03 82cc combustion chambers, 18-bolt pattern, and 2.400" titanium intake valves, 360cc intake runners TFS-5451T804-C03 85cc combustion chambers, 18-bolt pattern, and 2.400" intake valves, 360cc intake runners TFS-5451T804-C04 87cc combustion chambers, 18-bolt pattern, and 2.400" intake valves, 360cc intake runners Specifications Material: A356-T61 aluminum Combustion Chamber Volume: M83: 83cc CNC-profiled M87: 87cc CNC-profiled T8T5-C03: 82cc CNC-profiled T804-C03: 85cc CNC-profiled T804-C04: 87cc CNC-profiled Intake Port Volume: M83/M87: 340cc Fast As Cast C03/C04: 360cc CNC Competition Ported Intake Port Location: Raised 1.000" from stock Intake Port Dimensions: M83/M87: 1.810" x 2.460" C03/C04: 1.810" x 2.490" Intake Gaskets: TFS-2706 Intake Valve Diameter: M83/M87 18-bolt: 2.350" (TFS-54400210) C03/C04 18-bolt: 2.400" (TFS-54503211) C03 Titanium: 2.400" (TFS-5450T211) Intake Valve Seat: Ductile iron (TFS-54400271) Exhaust Port Volume: M83/M87: 172cc Fast As Cast C03/C04: 180cc CNC Competition Ported Exhaust Port Location: Raised 1.500" from stock Exhaust Port Dimensions: 1.900" x 1.850" D-shape Exhaust Gaskets: Fel-Pro 1412 Exhaust Valve Diameter: M83/M87: 1.880" (TFS-54400212) C03/C04: 1.880" (TFS-54503212) Exhaust Valve Seat: Ductile iron interlock (TFS-54400272) Valve Angles: Intake 13°/5°, exhaust 9.5°/5° Valve Guide Material: M83/M87: Bronze alloy (intake TFS-41400251-8, exhaust TFS-54500253) C03/C04: Bronze alloy (intake TFS-54500252, exhaust TFS-54500253) Valve Seals: M83/M87: Viton® fluoroelastomer (TFS-30400454) C03/C04: Viton® fluoroelastomer (intake TFS-54500454-8, exhaust TFS-54500455-8) Valve Seat Angles: 45° x multi-angle Valve Spring Pocket Diameter: 1.760" Valve Spring Cups: 1.640" (TFS-41400434) Valve Spring Retainers: M83/M87: 10° x 1.625" o.d. titanium (TFS-214T0620) C03/C04: 10° x 1.625" o.d. titanium (TFS-214T0650) Valve Stem Locks: M83/M87: 10° machined steel with lash cap recess (TFS-52400444) C03/C04: 10° steel bead lock with lash cap recess (intake TFS-54500444, exhaust TFS-54500445) Valve Springs, 340cc: 1.640" o.d. dual spring with damper (TFS-16414-16) 250 lbs. @ 2.000" installed height 800 lbs. @ 1.150" open 600 lbs. per inch rate .850" maximum valve lift Valve Springs, 360cc: 1.645" o.d. triple spring (TFS-16948-16) 332 lbs. @ 2.100" installed height 950 lbs. @ 1.200" open 688 lbs. per inch rate .900" maximum valve lift Guideplates: 3/8" (TFS-54400623), 7/16" (TFS-54400624) Rocker Arm Studs: 7/16" (intake TFS-54400614, exhaust TFS-54400615) Rocker Arms: TFS-53400621 (1.73 ratio, 7/16" studs) Minimum Bore Diameter: M83/M87: 4.390" C03/C04: 4.500" Cylinder Head Bolts: ARP 255-4304 Head Gaskets: TFS-54594600-045 Pushrod Length: Longer than stock required Spark Plugs: Autolite 3924 Viton® is a registered trademark of DuPont Performance Elastomers. Airflow Results PowerPort A460 340 Lift Value Intake Flow CFM Exhaust Flow CFM .100" 76 67 .200" 160 120 .300" 246 162 .400" 312 204 .500" 357 237 .600" 392 264 .700" 418 286 .800" 428 303 Tests conducted at 28" of water (pressure). Bore size: 4.500"; intake valve: 2.350"; exhaust with 2" pipe. TFS-5451T804-C03 Click Here to Shop All Big Block Ford Products at
