Trick Flow Ultra 18 250cc Cylinder Heads for Small Block Chevrolet - TFS-3181T001-C01

Trick Flow Ultra 18 250cc Cylinder Heads for Small Block Chevrolet – TFS-3181T001-C01

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SKU: TFS-3181T001-C01 Categories: Chev Small Block, Cylinder Heads, Shop By Brand, Shop By Engine, Small Block Chev, Trickflow Specialties, Trickflow Specialties Tags: Chev, Cylinder Heads, Small Block

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Performance Cylinder Heads

Trick Flow Ultra 18® 250 cylinder heads with 18 degree runners make serious horsepower—power ideal for drag and high-rpm circle track racing. Right out of the box, these heads deliver higher airflow numbers than fully prepped 23 degree heads.
Features include Trick Flow’s CNC-profiled combustion chambers and CNC Competition Ported runners with a premium high resolution surface finish for maximum flow and performance. Check out our extensive range today!

UPC: 842645108679

Combustion Chamber Volume (cc): 56

Intake Runner Volume (cc): 250cc

Exhaust Runner Volume (cc): 100cc

Cylinder Head Style: Assembled

Cylinder Head Material: Aluminum

Intake Port Shape: Rectangular

Intake Valve Diameter (in): 2.150 in.

Cylinder Head Finish: Natural

CNC-Machined Combustion Chamber: Yes

CNC-Machined Intake Runner: Yes

CNC-Machined Exhaust Runner: Yes

Combustion Chamber Style: Heart

Intake Port Location: Raised

Exhaust Port Shape: Oval

Exhaust Port Location: Raised

Spark Plug Style: Angle

Intake Valves Included: Yes

Exhaust Valves Included: Yes

Exhaust Valve Diameter (in.): 1.600 in.

Valve Springs Included: Yes

Maximum Valve Lift (in): 0.700 in.

Outside Diameter of Outer Spring (in): 1.560 in.

Damper Spring Included: Yes

Number of Springs Per Valve: Dual

Retainers Included: Yes

Retainer Material: Titanium

Titanium Locks Included: Yes

Lock Style: 10 degree

Valve Stem Seals Included: Yes

Rocker Arm Studs Included: No

Rocker Arms Included: No

Rocker Arm Nuts Included: No

Guideplates Included: No

Valve Cover Mounting Style: Perimeter bolt

Accessory Bolt Holes Drilled: Yes

Intake Valve Angle: 18

Exhaust Valve Angle: 18

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

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