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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, guideplates, studs, and seals.■ 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 Runner Volume (cc): 220ccIntake Port Location: StandardIntake Valves Included: YesIntake Valve Diameter (in): 2.08 in.
CFM Port Flow Average @ 28" .100" - 76 .200" - 137 .300" - 189 .400" - 228 .500" - 254 .600" - 258
Runner Volume (cc): CNC- 65ccExhaust Valve Diameter (in): 1.600 in.Exhaust Valves Included: YesPort Shape: Square-PortExhaust Port Location: Standard
CFM Port Flow Average @ 28" .100" - 112 .200" - 155 .300" - 186 .400" - 203 .500" - 208 .600" - 216
Combustion Chamber Volume (cc): 64ccCNC-Machined Combustion Chamber: No
Maximum Valve Lift (in): .650 in.Intake Valve Angle: 23 DegreesExhaust Valve Angle: 23 DegreesValve Guides Included: YesValve Guide Material: Manganese BronzeValve Seats Machined: YesValve Seat Machine Style: 5-AngleValve Seat Material: Chrome NickleValve Stem Seals Included: YesValve Stem Seal Style: Viton® Fluoroelastomer
Valve Springs Included: YesSpring Pressure Open:360-380 @ 1.150Spring Pressure Closed: 115-135 @ 1.800Outside Diameter of Outer Spring (in): 1.295 in.Damper Spring Included: YesNumber of Springs per Valve: DualRetainers Included: YesRetainer Material: Chromemoly SteelLocks Included: YesLock Style: 7 Degree
Guide Plates Included: YesGuide Plate Pushrod Size (in): 5/16 in.
Rocker Arm Studs Included: YesRocker Arm Stud Size (in): 7/16 in.Rocker Arms Included: N/ARocker Arm Nuts Included: No
Head Style: Assembled
Cylinder Head Material: AluminumCylinder Head Finish: Natural
Spark Plug Style: Straight – .750 Reach GasketCover Mounting Style: Perimeter & Centert BoltAccessory Bolt Holes Drilled: YesSteam Holes Drilled: NoOiling Style: Through PushrodMachined for O-Ring: NoHeat Crossover: No
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