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Dart Machinery, LTD. stands behind each product we manufacture 100%. Each component undergoes a detailed manufacturing process that involves the hundreds of calculated and precision steps to ensure the finest quality possible.
IronEagle 23 227cc CNC Port

Iron Eagle 23° 227cc CNC

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Product Description

Fully CNC ported. Maximum performance/full competition, unlimited oval and super classes. 7,000+ RPM, 400+ cubic inch engines.

Completely CNC machined, the Iron Eagle 23° 227cc CNC heads offer ultimate consistency and performance. With intake ports designed to optimize fuel/air flow efficiency and combustion chambers that offer a more complete and rapid burn, these heads are perfect for big inch small blocks.

Standard valve angle and spacing are retained to allow use of off the shelf pistons and valve train components.

Hardened exhaust seats are compatible with unleaded gasoline. Manganese Bronze valve guides extend cylinder head life.

Heads are sold individually.

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Material: High Nickel 220 BHN Cast Iron

Valve Angle: 23° (stock)

Intake Port Volume: 227cc CNC

Intake Valve: 2.080”

Exhaust Valve: 1.600”

Chamber Volume: 72cc

Plug Type: Angle

Iron EAGLE 23° 227cc CNC (Angle Plug Heads)

72cc Combustion Chambers

10970040 – Bare Head

10971142 – 1.437” Dual Springs for Hydraulic Roller or Solid Flat Tappet Cam .620”

10971143 – 1.550” Dual Springs for Solid Roller Cam .660”

I.E. PRO 227cnc – H10

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