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Trickflow Ultra 18 Cylinder Heads, SB Chevy, 250cc Intake, TItanium Retainers, Max Lift 0.700

Take the 18 degree power leap! Ideal for drag and high-rpm circle track racing, Trick Flow® Ultra 18® 250 cylinder heads make serious horsepower right out of the box. In fact, the heads deliver higher airflow numbers than fully prepped 23 degree small block Chevy heads.

These heads feature Trick Flow CNC-profiled combustion chambers and CNC Competition Ported runners with a premium high resolution surface finish for maximum flow and performance. The heads accept most current 18 degree intake manifolds, headers, and other components. They require the use of offset shaft-mounted rocker arms and a mechanical roller camshaft with offset intake lifters. Trick Flow® Ultra 18® cylinder heads are available fully assembled or as bare castings and sold individually.
Was: $1,449.00
Sale: $1,290.00
Save: 11%
Save: $159.00

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Manufacturer's Part Number: TFS-3181T001-C01
Part Type: Cylinder Heads
Product Line: Trick Flow® Ultra 18® 250 Cylinder Heads for Small Block Chevrolet
Cylinder Head Style: Assembled
Cylinder Head Material: Aluminum
Intake Valve Diameter (in): 2.150 in.
Cylinder Head Finish: Natural
Combustion Chamber Volume (cc): 56
CNC-Machined Combustion Chamber: Yes
Intake Runner Volume (cc): 250cc
Exhaust Runner Volume (cc): 100cc
CNC-Machined Intake Runner: Yes
CNC-Machined Exhaust Runner: Yes
Combustion Chamber Style: Heart
Intake Port Shape: Rectangular
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
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.
Notes: Requires Jesel or T&D shaft mount rocker arm system, offset 0.550 in. for the intake side and 0.220 in. for the exhaust side. Will also need special 18 degree intake manifold and custom-built headers.


  • TFS-3181T001-C01
  • TFS-3181T001-C01
  • Trickflow
  • New

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  • Item Requires Shipping
  • 40.0 lbs.
  • W12.0000” x H12.0000” x L24.0000”
  • Free Basic Shipping

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