Instant Rebates
800.345.4545
Call Our Support Line
24 Hours / 7 Days a Week!  
FREE SHIPPING!
Same Day Shipping Before 11 PM ET
0
My Cart
0
$0.00
Shop By Vehicle
Shop By
Category
Close Menu
Shop By Vehicle
Top Categories
All Categories

All Categories


Free Catalog
E-Mail Signup
My Account
Track Order
Gift Certificates
Rebates
Help

Blueprint Engines HP8103

Muscle Car Series Aluminum Cylinder Head Small Block Chevy

Blueprint Engines HP8103

138-HP8103

jegs shipping
FREE Shipping
Ships
Easy Returns
Easy Returns
Lowest Price Guarantee
Lowest Price Guarantee
Blueprint Engines HP8103 Muscle Car Series Aluminum Cylinder Head Small Block Chevy $699.00
Muscle Car Series Aluminum Cylinder Head
  • Small Block Chevy
  • 220cc Intake Runner
  • 64cc Combustion Chamber
  • Straight Plug
  • Assembled
  • Sold Individually

  • Blueprint Engines HP8103 Details

    Muscle Car Series Aluminum Cylinder Heads

    Features:
  • Combustion Chamber Volume: 64cc
  • Intake Runner Volume: 220cc
  • Exhaust Runner Volume: 67cc
  • Intake Port Location: Standard
  • Exhaust Port Shape: Square-port
  • Exhaust Port Location: Standard
  • Spark Plug Style: Straight, .750 Reach Gasket
  • Intake Valve Diameter (in): 2.080"
  • Exhaust Valve Diameter (in): 1.600"
  • Maximum Valve Lift (in): .650"
  • Spring Pressure Closed: 125-135 @ 1.800"
  • Spring Pressure Open: 360-380 @ 1.150"
  • Outside Diameter of Outer Spring (in): 1.295"
  • Number of Springs Per Valve: Dual
  • Retainer Material: Chromemoly Steel
  • Lock Style: 7 degree
  • Valve Stem Seal Style: Viton® Fluoroelastomer
  • Rocker Arm Nut Thread Size: 7/16" x 20
  • Guideplate Pushrod Size: 5/16"
  • Valve Cover Mounting Style: Perimeter and Center Bolt
  • Accessory Bolt Holes Drilled: Yes
  • Intake Valve Angle: 23 Degree
  • Exhaust Valve Angle: 23 Degree
  • Valve Guide Material: Manganese bronze
  • Valve Seat Machine Style: 5-angle
  • Valve Seat Material: Chrome Nickel
  • Steam Holes Drilled: No
  • Oiling Style: Through pushrod
  • Machined for O-Ring: No
  • Heat Crossover: No

  • Specifications:

    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
    Yes
    Exhaust Port Location
    Standard
    Exhaust Port Shape
    Square
    Exhaust Runner Volume (cc)
    67
    Exhaust Valve Angle
    23
    Exhaust Valve Diameter (in.)
    1.88
    Exhaust Valves Included
    Yes
    Guideplates Included
    Yes
    Heat Crossover
    No
    Intake Port Location
    Standard
    Intake Runner Volume (cc)
    220
    Intake Valve Angle
    23
    Intake Valve Diameter (in.)
    2.08
    Intake Valves Included
    Yes
    Lock Style
    7 degree
    Locks Included
    Yes
    Machined for O-Ring
    No
    Maximum Valve Lift (in.)
    0.65
    Number of Springs Per Valve
    Dual
    Oiling Style
    Through pushrod
    Outside Diameter of Outer Spring (in.)
    1.295
    Quantity
    Sold individually
    Retainer Material
    Chromoly steel
    Retainers Included
    Yes
    Rocker Arm Nut Thread Size (in.)
    7/16"-20
    Rocker Arm Nuts Included
    No
    Rocker Arm Studs Included
    Yes
    Rocker Arms Included
    No
    Steam Holes Drilled
    No
    Valve Cover Mounting Style
    Center and perimeter bolt
    Valve Guide Material
    Manganese bronze
    Valve Guides Included
    Yes
    Valve Seat Machine Style
    5-angle
    Valve Seat Material
    Chrome nickel
    Valve Seats Machined
    Yes
    Valve Springs Included
    Yes
    Valve Stem Seals Included
    Yes
    Manufacturer's Part Number:
    HP8103

    The BluePrint Muscle Car Series Small Block Chevy Aluminum Cylinder Heads are designed for hydraulic flat tappet and hydraulic roller cams. These 220cc intake runner heads have time and time again been proven to make more power than most other similar priced and designed heads. The as cast 67cc exhaust runner port and 64cc combustion chamber design, combined with high quality 21-4n Stainless steel 2.08" intake and 1.880" exhaust valves, Viton seals, and double springs make these heads a great value as well as making great power!

    PS8013 Flow Specifications
    Lift (Intake)CFM @ 28'' H2O
    0.100''77.2
    0.200''149.1
    0.300''193.8
    0.400''231.7
    0.500''262.2
    0.600''273.7
    0.700''277.2

    Items You May Also Consider

    Before you leave us... Receive a free catalog or join our email list

    Sign up to receive our catalog or subscribe to our email list now to see our exclusive email only specials, new products, and offers!

    Request CatalogJoin Email List