DART DA10111112 Chev SB Iron Eagle Cylinder Heads 180cc Intake 64cc Chamber w/ 1.437" Dual Springs (each)

Dart Iron Eagle 23° 180cc cylinder heads are an affordable alternative to more expensive Aluminum heads. These 180cc heads out perform many larger heads in a wide range of applications. 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.

Specifications:
Material: High Nickel 220 BHN Cast Iron
Valve Angle: 23° (stock)
Intake Port Volume: 180cc
Intake Valve: 2.020"
Exhaust Valve: 1.600"
Chamber Volume: 64
Plug Type: Angle

• Combustion Chamber Volume (cc):64
• Intake Runner Volume (cc):180cc
• Exhaust Runner Volume (cc):75cc
• Cylinder Head Style:Assembled
• Cylinder Head Material:Cast iron
• Intake Port Shape:Rectangular
• Intake Valve Diameter (in):2.020 in.
• Cylinder Head Finish:Natural
• CNC-Machined Combustion Chamber:No
• CNC-Machined Intake Runner:No
• CNC-Machined Exhaust Runner:No
• Combustion Chamber Style:Heart
• Intake Port Location:Standard
• Exhaust Port Shape:Square
• Exhaust Port Location:Standard
• 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):0.620 in.
• Outside Diameter of Outer Spring (in):1.437 in.
• Damper Spring Included:No
• Number of Springs Per Valve:Dual
• Retainers Included:Yes
• Retainer Material:Steel
• Locks Included:Yes
• Lock Style:7 degree
• Valve Stem Seals Included:Yes
• Valve Stem Seal Style:Positive stop
• Rocker Arm Studs Included:No
• Rocker Arms Included:No
• Rocker Arm Nuts Included:No
• Guideplates Included:Yes
• Guideplate Pushrod Size:5/16 in.
• Valve Cover Mounting Style:Center and perimeter bolt
• Accessory Bolt Holes Drilled:Yes
• Intake Valve Angle:23
• Exhaust Valve Angle:23
• Valve Guides Included:Yes
• Valve Guide Material:Manganese bronze intake/Phosphorous bronze exhaust
• Valve Seats Machined:Yes
• Valve Seat Machine Style:4-angle intake/3-angle exhaust
• Valve Seat Material:Ductile iron
• Steam Holes Drilled:No
• Oiling Style:Through pushrod
• Machined for O-Ring:No
• Heat Crossover:No
• Quantity:Sold individually.