Trick Flow Specialties TFS-4141T803-M22 - Trick Flow® PowerPort® 320 Cylinder Heads for Big Block Chevrolet

Trick Flow® PowerPort® 320 Cylinder Heads for Big Block Chevrolet TFS-4141T803-M22

Cylinder Head, PowerPort® 320, Aluminum, Assembled, 122cc Chamber, 320cc Intake, Chevy, Big Block, Each

Part Number:

TFS-4141T803-M22

Part Type:

Cylinder Heads

Product Line:

Trick Flow® PowerPort® 320 Cylinder Heads for Big Block Chevrolet

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 Port Shape:

Rectangular

Intake Valve Diameter (in):

2.300 in.

Cylinder Head Finish:

Natural

CNC-Machined Combustion Chamber:

Yes

CNC-Machined Intake Runner:

CNC-Machined Exhaust Runner:

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:

Rocker Arm Nuts Included:

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:

Oiling Style:

Through pushrod

Machined for O-Ring:

Heat Crossover:

Quantity:

Sold individually.

Notes:

Designed for mechanical roller camshafts. Exhaust port is raised 0.300 in. over stock.

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.

Cylinder heads are available fully assembled or as bare castings. Sold individually.

Warranty