Attributes

Key Value
Accessory Bolt Holes Dr.Yes
BrandPROMAXX Performance
Camshaft StyleHydraulic roller
CNC-Machined Combustion.No
CNC-Machined Exhaust Ru.No
CNC-Machined Intake Run.No
Combustion Chamber Volu.64
Cylinder Head ColorNatural
Cylinder Head MaterialAluminum
Cylinder Head StyleAssembled
Damper Spring IncludedYes
Exhaust Port LocationStandard
Exhaust Port ShapeRectangular
Exhaust Runner Volume (.66cc
Exhaust Valve Diameter .1.600 in.
Exhaust Valves IncludedYes
Guideplate Pushrod Size5/16 in.
Guideplates IncludedYes
Heat CrossoverNo
Intake Port LocationStandard
Intake Port ShapeRectangular
Intake Runner Volume (c.185cc
Intake Valve Diameter (.2.020 in.
Intake Valves IncludedYes
Lock StyleStock
Locks IncludedYes
Machined for O-RingNo
Manufacturer's Part.9187S
Maximum Valve Lift (in.)0.600 in.
Oiling StyleThrough pushrod
Part TypeCylinder Heads
Product LinePROMAXX Performance Pro.
QuantitySold as a pair.
Retainer MaterialSteel
Retainers IncludedYes
Rocker Arm Nut Thread S.3/8 in.-24
Rocker Arm Nuts IncludedNo
Rocker Arm Studs Includ.Yes
Rocker Arms IncludedNo
Spark Plug StyleStraight
Steam Holes DrilledNo
Summit Racing Part Numb.PMX-9187S
Valve Cover Mounting St.Perimeter bolt
Valve Guide MaterialManganese bronze
Valve Guides IncludedYes
Valve Seat Machine Style5-angle
Valve Seat MaterialSteel
Valve Seats MachinedYes
Valve Springs IncludedYes
Valve Stem Seals Includ.Yes
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