Trickflow Powerport Cylinder Head, Big Block Ford A460, 340cc Intake, Ti. Ret., Max Lift .850, 83cc Chamber

Serious horsepower for your Big Block Ford engine, heads sold individually and are fully assembled. Trick Flow’s potent PowerPort® A460 340 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 plus your choice of standard or heavy duty 18-bolt mounting patterns, plus Fast As Cast® runners that precisely duplicate 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.
Cylinder Head Style: Assembled Cylinder Head Material: Aluminum Cylinder Head Finish: Natural Combustion Chamber Volume (cc): 83 CNC-Machined Combustion Chamber: No Intake Runner Volume (cc): 340cc Exhaust Runner Volume (cc): 180cc CNC-Machined Intake Runner: No CNC-Machined Exhaust Runner: No Combustion Chamber Style: Heart Intake Port Shape: Rectangular Intake Port Location: Raised Exhaust Port Shape: Round Exhaust Port Location: Raised Spark Plug Style: Angle Intake Valves Included: Yes Intake Valve Diameter (in): 2.350 in. Exhaust Valves Included: Yes Exhaust Valve Diameter (in): 1.880 in. Valve Springs Included: Yes Maximum Valve Lift (in): 0.850 in. Outside Diameter of Outer Spring (in): 1.640 in. Damper Spring Included: Yes Number of Springs Per Valve: Dual Retainers Included: Yes Retainer Material: Titanium Locks Included: Yes Lock Style: 10 degree Valve Stem Seals Included: Yes Rocker Arm Studs Included: Yes Rocker Arms Included: No Rocker Arm Nuts Included: No Rocker Arm Nut Thread Size: 7/16-20 in. Guideplates Included: Yes Guideplate Pushrod Size: 3/8" Valve Cover Mounting Style: Perimeter bolt Accessory Bolt Holes Drilled: Yes Intake Valve Angle: 13/5 Exhaust Valve Angle: 9.5/5 Valve Guides Included: Yes Valve Guide Material: Bronze Valve Seats Machined: Yes Valve Seat Machine Style: 3-angle Valve Seat Material: Ductile iron Steam Holes Drilled: No Oiling Style: Through pushrod Machined for O-Ring: No Heat Crossover: No Quantity: Sold individually Notes: Requires an A460 specific intake manifold and custom-built header. Standard big block Chevy exhaust flange bolt pattern. Exhaust port is raised 1.500 in. over stock. Intake port is raised 1.000 in. over stock.

Instruction Sheets