Oldsmobile 400 425 455 188cc 77cc Hyd Flat Tappet Assembled Cylinder Heads Pair

$1289.0 Buy It Now or Best Offer
free,30-Day Returns

Seller Store raceprovenproducts
(1394) 100.0%,

Location: Rialto, California
Ships to: US,
Item: 205057421060

Returns Accepted:ReturnsNotAccepted
Speedmaster:Speedmaster
Type:Cylinder Head Assembly
Manufacturer Part Number:PCE281.2152
Material:Aluminum
Performance Part:Yes

As with all Speedmaster cylinder heads, our Oldsmobile heads are “Gravity Die Cast”. This casting process creates a much more uniform and robust cylinder head.These heads are set up for a Hydraulic Flat Tappet Cam. Assembly SpecificationsMax Lift: .615Coil Bind: .1.125Intake Install: 120lbs @ 1.8Exhaust Install: 120lbs @ 1.8Closed Seat Pressure: 120lbsOpen Seat Pressure: 320lbsGrab a set and you’ll be another satisfied Speedmaster – RACE Proven Products customer.We have sold hundreds of sets of Speedmaster heads without a single complaint and the material and casting quality is second to none.Sold as a pair.FREE Ground Shipping in the U.S. 48. Ships directly from Speedmaster’s Rialto CA Warehouse. SpecsBrand:SpeedmasterPart Number:PCE281.2152Part Type:Cylinder Heads Cylinder Head Style:AssembledCylinder Head Material:AluminumCylinder Head Finish:NaturalCombustion Chamber Volume (cc):77 ccCNC-Machined Combustion Chamber:NoIntake Runner Volume (cc):188 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:OEMComp. Valve Job:NoIntake Valves Included:YesIntake Valve Diameter (in):2.072 in.Exhaust Valves Included:YesExhaust Valve Diameter (in):1.680 in.Valve Springs Included:YesMaximum Valve Lift (in):0.615 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:Center & Perimeter BoltAccessory Bolt Holes Drilled:YesIntake Valve Angle:18 deg.Exhaust Valve Angle:18 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.

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