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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 200cc Port

Iron Eagle 23° 200cc

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Product Description

Street performance, restricted oval track, and marine performance upgrade. Mid-range to 6,500 RPM.

Dart Iron Eagle Platinum 23° 200cc heads offer increased high lift air flow for large displacement engines. Long wearing Bronze valve guides, screw-in studs, multi-angle intake seats and hardened and radiused exhaust seats are standard. Best of all, our precision cast ports produce outstanding airflow without time consuming porting.

Assemblies include Stainless Steel valves, premium springs, locks, retainers, studs, guide plates and seals.

Heads are sold individually.

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Material: High Nickel 220 BHN Cast Iron

Valve Angle: 23° (stock)

Intake Port Volume: 200cc

Intake Valve: 2.020”

Exhaust Valve: 1.600”

Chamber Volume: 49, 64, 72cc

Plug Types: Straight or angle

Iron EAGLE 23° 200cc (Straight Plug Heads)

64cc Combustion Chambers

10320010P – Bare Head

10321111P – 1.250” Single Springs for Hydraulic Flat Tappet Cam .510”

10321112P – 1.437” Dual Springs for Hydraulic Roller or Solid Flat Tappet Cam .620”

10321113P – 1.550” Dual Springs for Solid Roller Cam .660”


72cc Combustion Chambers

10420010P – Bare Head

10421111P – 1.250” Single Springs for Hydraulic Flat Tappet Cam .510”

10421112P – 1.437” Dual Springs for Hydraulic Roller or Solid Flat Tappet Cam .620”

10421113P – 1.550” Dual Springs for Solid Roller Cam .660”


Iron EAGLE 23° 200cc (Angle Plug Heads)

49cc Combustion Chambers

10310010PF – Bare Head


64cc Combustion Chambers

10310010P – Bare Head

10311111P – 1.250” Single Springs for Hydraulic Flat Tappet Cam .510”

10311112P – 1.437” Dual Springs for Hydraulic Roller or Solid Flat Tappet Cam .620”

10311113P – 1.550” Dual Springs for Solid Roller Cam .660”


72cc Combustion Chambers

10410010P – Bare Head

10411111P – 1.250” Single Springs for Hydraulic Flat Tappet Cam .510”

10411112P – 1.437” Dual Springs for Hydraulic Roller or Solid Flat Tappet Cam .620”

10411113P – 1.550” Dual Springs for Solid Roller Cam .660”

200 I.E. tech sheet – H07

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