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Vehicle Info NeededSPEEDMASTERPART NUMBER: 746-PCE281.2165
Cast Aluminum Cylinder Head Big Block Pontiac 389, 400, 455 Ram Air IV
$1,99500
3 left in stock
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Lowest Price GuaranteePontiac
Cast Aluminum Cylinder HeadBig Block Pontiac 389, 400, 455 Ram Air IV w/Hydraulic Roller Cam Assembled Head 72cc Combustion Chamber 215cc Intake Runner Includes Valves & Springs Sold as a Pair
- Intake Valve: 2.110 in.
- Exhaust Valve: 1.660 in.
- Max Lift: .580 in.
- Coil Bind: .740 in.
- Sold as a pair
Emissions Note:
This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.
CLICK THIS LINK FOR IMPORTANT CARB & EPA EMISSIONS INFORMATION ABOUT THIS PART
Part TypeCylinder Head
BrandSPEEDMASTER
Package Height7.6
Package Width10.4
Package Length21.8
Weight73.15 PG
Part CategoryPerformance Parts
Cylinder Head MaterialAluminum
Intake Port LocationStandard
Exhaust Valves IncludedYes
Locks IncludedYes
Engine Make/SizePontiac 389/400/455
Retainers IncludedYes
Intake Port ShapeRam Air IV
Lock Style10 degree
Guideplates IncludedNo
Rocker Arms IncludedNo
Oiling StyleThrough pushrod
Rocker Arm Nuts IncludedNo
Cylinder Head FinishNatural
Valve Seats MachinedYes
Intake Valve Angle14
Maximum Valve Lift0.58 in (14.732 mm)
Valve Seat MaterialDuctile iron
Heat CrossoverNo
Number Of Springs Per ValveDual
Valve Springs IncludedYes
Spark Plug StyleStraight
Exhaust Port ShapeRam Air IV
Valve Seat Machine Style3-angle
Cnc-Machined Intake RunnerNo
Intake Valves IncludedYes
QuantitySold as a pair
Valve Stem Seals IncludedYes
Intake Valve Diameter2.110 in
Accessory Bolt Holes DrilledYes
Exhaust Runner Volume (Cc)175
Exhaust Port LocationStandard
Valve Guide MaterialBronze
TypeComplete
Combustion Chamber Volume (Cc)72
Machined For O-RingNo
Exhaust Valve Angle14
Steam Holes DrilledNo
Rocker Arm Studs IncludedNo
Cylinder Head StyleAssembled
Part FitmentSemi Universal
Valve Cover Mounting StyleCenter and perimeter bolt
Valve Stem Seal StylePositive stop
Retainer MaterialChromoly steel
Intake Runner Volume (Cc)215
Cnc-Machined Exhaust RunnerNo
Cnc-Machined Combustion ChamberYes
Exhaust Valve Diameter1.66 in (42.164 mm)
Vendor Part NumberPCE281.2165
Package Qty1
Package TypeEA
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