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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 big block Chevy and feature 358cc intake/125cc exhaust runners, 119cc combustion chambers, and 2.3" intake/1.880" 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): 358ccIntake Port Location: StandardIntake Valves Included: YesIntake Valve Diameter (in): 2.3 in.
CFM Port Flow Average @ 28" .100" - 116.200" - 184.300" - 241.400" - 291.500" - 328.600" - 351
Runner Volume (cc): 125ccExhaust Valve Diameter (in): 1.880 in.Exhaust Valves Included: YesCNC-Machined Exhaust Runner: NoPort Shape: D-ShapeExhaust Port Location: Standard
CFM Port Flow Average @ 28" .100" - 84.200" - 130.300" - 183.400" - 226.500" - 260.600" - 286
Combustion Chamber Volume (cc): 119ccCNC-Machined Combustion Chamber: No
Maximum Valve Lift (in): .650 in.Intake Valve Angle: 24 Degrees (2 degrees rolled)Exhaust Valve Angle: 15 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: 380-400 @ 1.250Spring Pressure Closed: 135-145 @ 2.000Outside Diameter of Outer Spring (in): 1.540 in.Damper Spring Included: YesNumber of Springs per Valve: DualRetainers Included: YesRetainer Material: Chromemoly SteelLocks Included: YesLock Style: 10 Degree
Guide Plates Included: YesGuide Plate Pushrod Size (in): 3/8 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: StraightCover Mounting Style: Perimeter BoltAccessory Bolt Holes Drilled: YesOiling Style: Through PushrodMachined for O-Ring: NoHeat Crossover: No
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