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Complete Aluminum Cylinder Heads SBF FORD GT40 289 302 351W 175cc 62cc 2.02/1.60:
Brand:AT Racing WorldPart Number:FF281.1004Part Type:Cylinder Heads Cylinder Head Style:AssembledCylinder Head Material:AluminumCylinder Head Finish:NaturalCombustion Chamber Volume (cc):62 ccCNC-Machined Combustion Chamber:NoIntake Runner Volume (cc):175 ccExhaust Runner Volume (cc):n/aCNC-Machined Intake Runner:NoCNC-Machined Exhaust Runner:NoIntake Port Shape:RectangularIntake Port Location:StandardExhaust Port Shape:SquareExhaust Port Location:StandardSpark Plug Style:StandardComp. Valve Job:NoIntake Valves Included:YesIntake Valve Diameter (in):2.020 in.Exhaust Valves Included:YesExhaust Valve Diameter (in):1.600 in.Valve Springs Included:YesMaximum Valve Lift (in):0.550 in.Outside Diameter of Outer Spring (in):1.450 in.Damper Spring Included:YesNumber of Springs Per Valve:DualRetainers Included:YesRetainer Material:Chromoly steelLocks Included:YesLock Style:10 degreeValve Stem Seals Included:YesValve Stem Seal Style:Positive stopRocker Arm Studs Included:NoRocker Arms Included:NoRocker Arm Nuts Included:NoGuideplates Included:NoValve Cover Mounting Style:Perimeter BoltAccessory Bolt Holes Drilled:YesIntake Valve Angle:20 deg.Exhaust Valve Angle:20 deg.Valve Guides Included:YesValve Guide Material:BronzeValve Seats Machined:YesValve Seat Machine Style:3-angleValve Seat Material:Ductile ironSteam Holes Drilled:NoOiling Style:Through pushrodMachined for O-Ring:NoHeat Crossover:NoQuantity:Sold as a pair.CalculatorCompression Calculator
Assembly Specifications Max Lift: .550 Coil Bind: .740 Intake Install: 130lbs @ 1.8 Exhaust Install: 130lbs @ 1.8 Closed Sear Pressure: 110lbs Open Seat Pressure: 300lbs