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BBC ProComp Aluminum Cylinder Heads 300 Runner Assembled - Item # PCM 3021-396C

BBC ProComp Aluminum Cylinder Heads 300 Runner Assembled - Item # PCM 3021-396C

Pro Comp Aluminum Cylinder Heads are a great choice for an out of the box horse power upgrade for your Big Block Chevy. These Pro Comp Cylinder Heads have a thick Deck Design and High Capacity water jackets that makes them a reliable choice for street or strip applications. Pro Comp Cylinder Heads accept standard Big Block Chevy pistons, headers, intake manifold, and valve train components. (Sold in pairs, 2 heads).


Specifications :
       
  • Brand
  •         ProComp
  • Manufacturer’s Part #
  •         PC3021-396
  • Cylinder Head Style
  •         Assembled
  • Cylinder Head Material
  •         Aluminum
  • Combustion Chamber
  •         115cc
  • Intake Runner Style
  •         Oval
  • Intake Runner Volume
  •         300cc
  • Exhaust Runner Volume
  •         110cc
  • Intake Port size
  •         1.800W x 1.990H
  • Exhaust Port size
  •         1.900W x 1.680H
  • Spark Plug Style
  •         Standard Angle
  • Intake Valve Diameter
  •         2.250 in.
  • Exhaust Valve Diameter
  •         1.880 in.
  • Rocker Stud Thread Size
  •         7/16 - 20 in.
  • Accessory Bolt Holes
  •         Yes
  • Valve Guide Material
  •         Bronze - 11/32”
  • Valve Seats Machined
  •         Yes
  • Valve Seat Style
  •         Multi Angle
  • Valve Seat Material
  •         Hardened Ductile Iron
  • Intake Bolt Pattern
  •         Oval port; 65-90
  • Valve Cover Mounting
  •         Perimeter (OEM)
  • Quantity
  •         Sold as a pair



    Build Specifications :
  • Valves
  •         Stainless Steel
  • Valve Length
  •         IN. 0.250 L / EX. 0.100 L
  • Intake Valve Diameter
  •         2.250 in.
  • Exhaust Valve Diameter
  •         1.880 in.
  • Valve Seals
  •         Viton Seals
  • Retainers
  •         Chrome Moly Steel
  • Locks
  •         10 degree Forged Steel
  • Rocker Studs
  •         7/16
  • Guide Plates
  •         Moly Steel
  • Locator Cups
  •         Chrome Moly Steel
  • Valve Springs
  •         See Options Below:


    Availabilty: In stock

    Price:

    $975.00

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    Item Options

    BBC Pro Comp Heads 320cc Oval Port Options

    Item #...............Description......Spring OD.....Seat Press....Open Press...Max Lift

    3021-396..300cc Oval.........1.485............110 lbs...........300 lbs..........0.590

    3021-396..300cc Oval.........1.550............135 lbs...........350 lbs..........0.670

    3021-396..300cc Oval.........1.550............200 lbs...........600 lbs..........0.740

    Item Quantity

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