Aluminum Assembled Cylinder Head - GM SB Compatible - 220cc

Get big power on a small budget with BluePrint Muscle Series cylinder heads! These lightweight aluminum heads bolt up to your small block Chevy and feature 220cc intake/67cc exhaust runners, 64cc combustion chambers, and 2.08" intake/1.60" exhaust valves. They're fully assembled with valve springs, retainers, locks, guide plates, studs, and seals. Manufacturer's part number -HP8103.

• Maximum Output for Less Money!
• Designed and Produced by BluePrint Engines
• Fully Assembled with Heavy Duty Components
• Backed by Our Full 12-Month Limited Warranty

Intake:

• Intake�Runner�Volume�(cc): 220cc
• Intake�Port�Location: Standard
• Intake Port Shape: Rectangular
• Intake�Valves�Included: Yes
• Intake�Valve�Diameter�(in): 2.08 in.
• CFM Port Flow Average @ 28"�
• .100" ���76
• .200" �� 137
• .300" �� 189
• .400" -�228
• .500" �� 254
• .600" - 258

Exhaust:

• Runner Volume (cc): 65cc
• Exhaust�Valve�Diameter�(in): 1.600 in.
• Exhaust�Valves�Included: Yes
• Port Shape: Square
• Exhaust Port Location: Raised .500 in.
• CFM Port Flow Average @ 28"�
• .100" ���112
• .200" ���155
• .300" �� 186
• .400" ���203
• .500" �� 208
• .600" - 216

Combustion Chamber:

• Combustion Chamber Volume (cc): 64cc
• CNC-Machined Combustion Chamber: No

Valve Specs:

• Maximum�Valve�Lift�(in): .650 in.
• Intake�Valve�Angle: 23 Degrees
• Exhaust�Valve�Angle: 23 Degrees
• Valve�Guides�Included: Yes
• Valve�Guide�Material: Manganese Bronze
• Valve�Seats�Machined: Yes
• Valve�Seat�Machine�Style: 5-Angle
• Valve�Seat�Material: Chrome Nickle
• Valve�Stem�Seals�Included: Yes
• Valve�Stem�Seal�Style: Viton庐 Fluoroelastomer

Springs:

• Valve�Springs�Included: Yes
• Spring Pressure Open: 360-380 @ 1.150
• Spring Pressure Closed: 115-135 @ 1.800
• Outside�Diameter�of�Outer�Spring�(in): 1.295 in.
• Damper�Spring�Included: Yes
• Number�of�Springs�per�Valve: Dual
• Retainers�Included: Yes
• Retainer Material: Chromoly Steel
• Locks�Included: Yes
• Lock�Style: 7 Degree

Pushrods:

• Guide Plates�Included: Yes
• Guide Plate�Pushrod�Size (in): 5/16 in.

Rocker Arms:

• Rocker�Arm�Studs�Included: Yes
• Rocker Arm Stud Size (in): 7/16 in. x 20
• Rocker�Arms�Included: N/A
• Rocker�Arm�Nuts�Included: No

Misc:

• Head�Style: Assembled
• Cylinder�Head�Material: Aluminum
• Cylinder�Head�Finish: Natural
• Spark�Plug�Style: Straight �� .750 Reach Gasket
• Spark Plug Placement: Vortec
• Camshaft Style: Hydraulic Roller
• Accessory Bolt Holes Drilled: Yes
• Valve Cover Mounting Style: Perimeter & Center Bolt
• Steam Holes�Drilled: No
• Oiling�Style: Through Pushrod
• Machined�for�O-Ring: No
• Heat�Crossover: No
• 3/8 -16 in. Accessory Bolt Holes Machined on Ends of Heads
  

Qty:

• Sold Individually

Warranty:

• Backed by our full 12-month limited warranty!