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BluePrint Engines Muscle Series Cylinder Heads HP8103 Assembled Small Block Chevy Aluminum Head, 64CC Combustion Chamber, 220CC, Square Port, Each

SKU: MLLHP8103

Cylinder Heads

BluePrint Engines Muscle Series Cylinder Heads HP8103 Assembled Small Block Chevy Aluminum Head, 64CC Combustion Chamber, 220CC, Square Port, Each

SKU: MLLHP8103

Cylinder Heads
A$2,488.85
Special Order. Contact for ETA. This item is out of stock in our warehouse and partner distribution centres. In some cases, this may be due to not having live inventory feeds available for all suppliers. Please contact us before ordering if you need to meet a specific deadline.
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Description

IMPORTANT NOTICE: Will not fit 1986-1991 Chevrolet Corvette. Uses 3/4 in. reach gasket seat spark plug.

Welcome to a new class of high performance cylinder heads--BluePrint Muscle Series! These aluminum heads are assembled with the perfect match of components for outstanding, trouble-free performance. Plus, they give you more power behind the wheel and in your wallet! These all-cast heads are designed for hydraulic flat tappet and hydraulic roller cam engines with hefty intake runners, stainless steel valves, VitonĀ® seals, and dual springs. BluePrint Engines stand in front of the class, offering both performance and cost-conscious enthusiasts a powerful alternative--Muscle Series cylinder heads.

Part Type

Cylinder Heads

Data: v4.2 - Upd: 2026-09-27 14:39:31

Specifications

Product Attributes - Brand
BluePrint Engines
Product Attributes - Manufacturer's Part Number
HP8103
Product Attributes - Part Type
Cylinder Heads
Product Attributes - Product Line
BluePrint Engines Muscle Series Cylinder Heads
Product Attributes - UPC
00887753744258
Product Attributes - Combustion Chamber Volume (cc)
64
Product Attributes - Intake Runner Volume (cc)
220cc
Product Attributes - Exhaust Runner Volume (cc)
67cc
Product Attributes - Cylinder Head Style
Assembled
Product Attributes - Cylinder Head Material
Cast aluminum
Product Attributes - Camshaft Style
Hydraulic roller
Product Attributes - Intake Port Shape
Rectangular
Product Attributes - Intake Valve Diameter (in.)
2.080 in.
Product Attributes - CNC-Machined Combustion Chamber
No
Product Attributes - CNC-Machined Intake Runner
No
Product Attributes - CNC-Machined Exhaust Runner
No
Product Attributes - Intake Port Location
Standard
Product Attributes - Exhaust Port Shape
Square
Product Attributes - Exhaust Port Location
Raised
Product Attributes - Spark Plug Style
Straight
Product Attributes - Intake Valves Included
Yes
Product Attributes - Exhaust Valves Included
Yes
Product Attributes - Exhaust Valve Diameter (in.)
1.600 in.
Product Attributes - Valve Springs Included
Yes
Product Attributes - Maximum Valve Lift (in.)
0.650 in.
Product Attributes - Outside Diameter of Outer Spring (in.)
1.295 in.
Product Attributes - Damper Spring Included
Yes
Product Attributes - Number of Springs Per Valve
Dual
Product Attributes - Retainers Included
Yes
Product Attributes - Retainer Material
Chromoly steel
Product Attributes - Locks Included
Yes
Product Attributes - Lock Style
7 degree
Product Attributes - Valve Stem Seals Included
Yes
Product Attributes - Rocker Arm Studs Included
Yes
Product Attributes - Rocker Arm Nut Thread Size
7/16 in.-20
Product Attributes - Rocker Arms Included
No
Product Attributes - Rocker Arm Nuts Included
No
Product Attributes - Guideplates Included
Yes
Product Attributes - Guideplate Pushrod Size
5/16 in.
Product Attributes - Valve Cover Mounting Style
Center and perimeter bolt
Product Attributes - Accessory Bolt Holes Drilled
Yes
Product Attributes - Intake Valve Angle
23
Product Attributes - Exhaust Valve Angle
23
Product Attributes - Valve Guides Included
Yes
Product Attributes - Valve Guide Material
Manganese bronze
Product Attributes - Valve Seats Machined
Yes
Product Attributes - Valve Seat Machine Style
5-angle
Product Attributes - Valve Seat Material
Chrome nickel
Product Attributes - Cylinder Head Color
Natural
Product Attributes - Steam Holes Drilled
No
Product Attributes - Oiling Style
Through pushrod
Product Attributes - Machined for O-Ring
No
Product Attributes - Heat Crossover
No
Product Attributes - Remanufactured
No
Product Attributes - Quantity
Sold individually.
Product Attributes - Notes
Will not fit 1986-1991 Chevrolet Corvette. Uses 3/4 in. reach gasket seat spark plug.
Product Attributes - Special Attention
Drilling steam holes in these cylinder heads will void the warranty.

Reference Information

Brand Name/s Blueprint Engines
StreetFX SKU mllHP8103
SFX Item ID 5183085
Supplier Item Code 5183085
Manufacturer SKU HP8103
Manufacturer UPC 887753744258
Alternative References 64CC, 220CC

Compatibility

Application Data
  • MakeCHEVROLET
    Beginning Year1962
    Ending Year1969
    Engine TypeV8
    Engine FamilyChevy small block Gen I
    Engine Size5.3L/327
    Rocker Arm Mounting Style (application)Stud
    Application NotesWill not fit 1986-1991 Chevrolet Corvette.
  • MakeCHEVROLET
    Beginning Year1967
    Ending Year1969
    Engine TypeV8
    Engine FamilyChevy small block Gen I
    Engine Size4.9L/302
    Rocker Arm Mounting Style (application)Stud
    Application NotesWill not fit 1986-1991 Chevrolet Corvette.
  • MakeCHEVROLET
    Beginning Year1967
    Ending Year1986
    Engine TypeV8
    Engine FamilyChevy small block Gen I
    Engine Size5.7L/350
    Rocker Arm Mounting Style (application)Stud
    Application NotesWill not fit 1986-1991 Chevrolet Corvette.
  • MakeCHEVROLET
    Beginning Year1970
    Ending Year1980
    Engine TypeV8
    Engine FamilyChevy small block Gen I
    Engine Size6.6L/400
    Rocker Arm Mounting Style (application)Stud
    Application NotesWill not fit 1986-1991 Chevrolet Corvette.

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