PROMAXX Performance Cylinder Head, Freedom, Aluminum, Assembled, 64 cc Chamber, 185 cc Intake Runner, Straight Plug, Chevy, Pair 

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PROMAXX Performance Freedom Series Small Block Chevy Cylinder Head 2169

 

  • Accessory Bolt Holes Drilled
  • Yes
  • CNC-Machined Combustion Chamber
  • No
  • CNC-Machined Exhaust Runner
  • No
  • CNC-Machined Intake Runner
  • No
  • Combustion Chamber Volume (cc)
  • 64
  • Cylinder Head Finish
  • Natural
  • Cylinder Head Material
  • Aluminum
  • Cylinder Head Style
  • Assembled
  • Damper Spring Included
  • No
  • Exhaust Port Location
  • Standard
  • Exhaust Port Shape
  • Square
  • Exhaust Runner Volume (cc)
  • 62cc
  • Exhaust Valve Diameter (in)
  • 1.600 in.
  • Exhaust Valves Included
  • Yes
  • Guideplate Pushrod Size
  • 5/16 in.
  • Guideplates Included
  • Yes
  • Heat Crossover
  • No
  • Intake Port Location
  • Standard
  • Intake Runner Volume (cc)
  • 185cc
  • Intake Valve Diameter (in)
  • 2.020 in.
  • Intake Valves Included
  • Yes
  • Lock Style
  • Stock
  • Locks Included
  • Yes
  • Machined for O-Ring
  • No
  • Maximum Valve Lift (in)
  • 0.575 in.
  • Oiling Style
  • Through pushrod
  • Outside Diameter of Outer Spring (in)
  • 1.400 in.
  • Quantity
  • Sold as a pair.
  • Retainer Material
  • Steel
  • Retainers Included
  • Yes
  • Rocker Arm Nut Thread Size
  • 3/8-24 in.
  • Rocker Arm Nuts Included
  • No
  • Rocker Arm Studs Included
  • Yes
  • Rocker Arms Included
  • No
  • Spark Plug Style
  • Straight
  • Steam Holes Drilled
  • No
  • Valve Cover Mounting Style
  • Perimeter bolt
  • Valve Guide Material
  • Manganese bronze
  • Valve Guides Included
  • Yes
  • Valve Seat Machine Style
  • 5-angle
  • Valve Seat Material
  • Ductile iron
  • Valve Seats Machined
  • Yes
  • Valve Springs Included
  • Yes
  • Valve Stem Seals Included
  • Yes




    Summit Racing Part Number: PMX-2169

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