Trick Flow PowerPort 320 Cylinder Heads for Big Block Chevrolet 2.300″ intake valves, 1.640″ dual valve springs & Titanium Retainers – TFS-4141T803-M22

Trick Flow PowerPort 320 Cylinder Heads for Big Block Chevrolet 2.300″ intake valves, 1.640″ dual valve springs & Titanium Retainers – TFS-4141T803-M22

SKU: TFS-4141T803-M22 Categories: , , Tags: , , , ,

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Trick Flow PowerPort 320 Cylinder Heads for Big Block Chevrolet 2.300″ intake valves, 1.640″ dual valve springs & Titanium Retainers – TFS-4141T803-M22

Description

Performance Cylinder Heads

Perfect for all high performance street/strip, racing, and marine applications, Trick Flow PowerPort® 320 cylinder heads for big block Chevy deliver exceptional power potential and competition level durability. Features include rectangular intake runners for strong mid- to high-rpm performance, fully CNC-profiled, heart-shaped combustion chambers, CNC bowl blended valve seat transitions, 24 degree intake valve angles with 4 degree side cants for additional airflow volume, adjustable guideplates, and premium quality, high-strength aluminum castings. The Fast As Cast® runners flow almost as much air as fully CNC-ported heads right out of the box. That means you’ll get almost CNC-ported performance for about the same price as regular cast heads. Check out our extensive range today!

UPC: 842645109638
Combustion Chamber Volume (cc): 122
Intake Runner Volume (cc): 320cc
Exhaust Runner Volume (cc): 137cc
Cylinder Head Style: Assembled
Cylinder Head Material: Aluminum
Intake Valve Diameter (in): 2.300 in.
Cylinder Head Finish: Natural
CNC-Machined Combustion Chamber: Yes
CNC-Machined Intake Runner: No
CNC-Machined Exhaust Runner: No
Combustion Chamber Style: Heart
Intake Port Location: Standard
Exhaust Port Shape: D-port
Exhaust Port Location: Raised
Spark Plug Style: Angle
Intake Valves Included: Yes
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
Valve Stem Seal Style: Positive stop
Rocker Arm Studs Included: Yes
Rocker Arm Nut Thread Size: 7/16-20 in.
Rocker Arms Included: No
Rocker Arm Nuts Included: No
Guideplates Included: Yes
Guideplate Pushrod Size: 3/8 in.
Valve Cover Mounting Style: Perimeter bolt
Accessory Bolt Holes Drilled: Yes
Intake Valve Angle: 24/4
Exhaust Valve Angle: 15/4
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: Designed for mechanical roller camshafts. Exhaust port is raised 0.300 in. over stock.