Description: As with all Speedmaster cylinder heads, our Small Block Chrysler heads are Gravity Die Cast. This casting process creates a much more uniform and robust cylinder head.Grab 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. Assembly SpecificationsMax Lift: .600Coil Bind: .1.150Intake Install: 120lbs @ 1.7Exhaust Install: 120lbs @ 1.7Closed Seat Pressure: 120lbsOpen Seat Pressure: 320lbs SpecsBrand:SpeedmasterPart Number:PCE281.2146Part Type:Cylinder Heads Cylinder Head Style:AssembledCylinder Head Material:AluminumCylinder Head Finish:NaturalCombustion Chamber Volume (cc):65 ccCNC-Machined Combustion Chamber:NoIntake Runner Volume (cc):170 ccExhaust Runner Volume (cc):n/aCNC-Machined Intake Runner:NoCNC-Machined Exhaust Runner:NoIntake Port Shape:RectangularIntake Port Location:StandardExhaust Port Shape:OEMExhaust Port Location:StandardSpark Plug Style:OEMComp. Valve Job:NoIntake Valves Included:YesIntake Valve Diameter (in):2.02 in.Exhaust Valves Included:YesExhaust Valve Diameter (in):1.60 in.Valve Springs Included:YesMaximum Valve Lift (in):0.600 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: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 shaftMachined for O-Ring:NoHeat Crossover:NoQuantity:Sold as a pair. HEAD GASKETSDue to the wide combustion chamber needed to fit around the large 2.02/ 1.60 valves, we recommend Felpro 1008 gaskets will also work with these head/ block combos. .INTAKE GASKETSThe PCE281.1488 heads work well with our PCE349.1010 rectangle port gaskets. If you prefer Felpro gaskets, these Chrysler heads take a 1213 gasket, depending on the thickness you require.SPARK PLUGSOur heads require the use of 14mm. x 3/4 reach 5/8 hex gasket seat sparkplugs. Some recommended plugs are; NGK BCPR6ES or R5671A-7, Champion RC12YC, Autolite AR3923 or AR3924. Remember these are for mild street engines. Higher compression or boost requires colder sparkplugs!HEAD BOLTS / STUDSDue to the raised (+.625) exhaust port location on our heads, +.100 longer bolts / studs are needed next to each port. Use our PCE279.1017 head stud Kit.Please consult your fastener manufacturer for their specific recommended torque values.
Price: 1179 USD
Location: Rialto, California
End Time: 2024-11-27T22:38:08.000Z
Shipping Cost: 0 USD
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Item Specifics
Returns Accepted: ReturnsNotAccepted
Brand: Speedmaster
Type: Cylinder Head Assembly
Manufacturer Part Number: PCE281.2146
Material: Aluminum
Performance Part: Yes
