Trick Flow PowerOval 280cc Cylinder Heads for Big Block Chevrolet 1.640" dual valve springs, Titanium Retainers - TFS-4131T003-M13

Description

Performance Cylinder Heads

Trick Flow PowerOval® 280 cylinder heads for big block Chevy are an ideal upgrade from factory cast iron heads for street/strip and marine applications. They feature an oval intake port design that produces excellent low and midrange torque and horsepower, plus more efficient heart-shaped, CNC-profiled combustion chambers, .300″ raised exhaust ports, extra-thick decks and walls for porting, and Fast As Cast® runners for near- CNC-ported performance at standard cast head prices. CNC bowl blended valve seat transitions promote high velocity and huge airflow volume and 24 degree valve angles with 4 degree side cants further increase airflow. Check out our extensive range today!

UPC: 842645109287

Combustion Chamber Volume (cc): 113

Intake Runner Volume (cc): 280cc

Exhaust Runner Volume (cc): 129cc

Cylinder Head Style: Assembled

Cylinder Head Material: Aluminum

Intake Port Shape: Oval

Intake Valve Diameter (in): 2.190 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: Exhaust port is raised 0.300 in. over stock.

Trick Flow PowerOval 280cc Cylinder Heads for Big Block Chevrolet 1.640″ dual valve springs, Titanium Retainers – TFS-4131T003-M13