Dart 19200010 Big Block Chevy Pro 1, 325cc/121cc Aluminum Cylinder Head, Bare

$1,544.80
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SKU:
DAT19200010
MPN:
19200010
UPC:
850134007433
Condition:
New
Weight:
32.70 LBS
Shipping:
Calculated at Checkout

Applies To Continental U.S. orders only

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Serious street performance, mild bracket racing, and marine. Over 7,000 RPM, 525+ cubic inches. Can be used on smaller engines with a tight converter.

The PRO1 24° 325cc delivers increased airflow at high valve lift for high RPM, big cubic inch engines, and still remains compatible with off the shelf pistons, valve train components, and intake manifolds.

Long wearing Bronze valve guides, screw-in studs, multi-angle intake seats with hardened, 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, guide plates and seals.

Heads are sold individually.


Features
  • Material: RMR Cast Aluminum Alloy
  • Valve Angle: 24°
  • Intake Port Volume: 325cc
  • Intake Valve: 2.250”/2.300”
  • Exhaust Valve: 1.880”
  • Chamber Volume: 121cc
  • Intake Port Shape: Rectangle
  • Exhaust Port Location: .300” raised
  • Cylinder Head Style:
    Bare
    Cylinder Head Material:
    Aluminum
    Cylinder Head Finish:
    Natural
    Combustion Chamber Volume (cc):
    121cc
    CNC-Machined Combustion Chamber:
    No
    Combustion Chamber Style:
    Heart Shaped
    Intake Runner Volume (cc):
    325cc
    CNC-Machined Intake Runner:
    No
    Intake Port Shape:
    Rectangular
    Intake Port Location:
    Standard
    Intake Valves Included:
    No
    Intake Valve Diameter (in.):
    2.250 in.
    Intake Valve Angle:
    24 Degree
    Exhaust Runner Volume (cc):
    129cc
    CNC-Machined Exhaust Runner:
    No
    Exhaust Port Shape:
    Oval
    Exhaust Port Location:
    0.300 in. Raised
    Exhaust Valves Included:
    No
    Exhaust Valve Diameter (in.):
    1.880 in.
    Exhaust Valve Angle:
    24 Degree
    Valve Type:
    N/A
    Valve Springs Included:
    No
    Valve Spring Type:
    N/A
    Maximum Valve Lift (in.):
    N/A
    Outside Diameter of Outer Spring (in.):
    N/A
    Damper Spring Included:
    No
    Valve Spring Pressure Closed:
    N/A
    Valve Spring Pressure Open:
    N/A
    Retainers Included:
    No
    Retainer Material:
    N/A
    Locks Included:
    No
    Lock Style:
    N/A
    Valve Stem Seals Included:
    No
    Valve Stem Seal Style:
    N/A
    Rocker Arm Studs Included:
    No
    Rocker Arm Studs Size:
    7/16
    Rocker Arms Included:
    No
    Rocker Arm Nuts Included:
    No
    Guideplates Included:
    No
    Valve Guides Included:
    Yes
    Intake Valve Guide Material:
    Manganese bronze
    Exhaust Valve Guide Material:
    Manganese Bronze
    Valve Seats Machined:
    Yes
    Valve Seat Machine Style:
    Multi Angeled
    Valve Seat Material:
    Powder Metal
    Spark Plug Style:
    Angled
    Spark Plug Type:
    14mm Spark Plug, .750 Reach
    Valve Cover Mounting Style:
    Perimeter bolt
    Accessory Bolt Holes Drilled:
    Yes
    Steam Holes Drilled:
    No
    Oiling Style:
    Through pushrod
    Machined for O-Ring:
    No
    Heat Crossover:
    No
    Quantity:
    Sold individually.
    Notes:
    Exhaust flange will accept stock-type gasket.
    Make:
    Chevrolet
    Engine Family:
    Chevy big block Mark IV
    Engine Sizes:
    6.5L/396-7.4L/454
    Years:
    1966-1990