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Vehicle Info NeededEDELBROCKPART NUMBER: 350-60579
Performer Cylinder Head for Pontiac V8
$1,49195
1 left in stock
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Lowest Price GuaranteePontiac Performer Aluminum Cylinder Heads
- Performer Cylinder Head
- 1962-1979 Pontiac 389-455ci
- Valve Springs for Hydraulic Flat Tappet
- Valve Size: 2.11"/1.66"
- Port Volume: 215cc/175cc
- 87cc Combustion Chambers
- 7/16" Rocker Studs
- Assembled, Sold Each
These cylinder heads are designed for outstanding performance gains in 1962-79 389-455 c.i.d. Pontiac engines. They are patterned after the 1969-70 Ram Air IV Pontiac cylinder head. This Performer head is 50-state emissions legal for 1965-79 vehicles. It features 87cc combustion chambers designed to maximize performance while using less expensive, low-octane fuel with a streetable 9.5:1 compression ratio.
Tech Tip: These heads require Ram Air IV (round port) style exhaust manifolds or headers and Edelbrock head bolt kit 350-8549.
To gain more spark plug clearance, Edelbrock recommends using Champion RC Series plugs, such as the RC12YC. They are 0.230' shorter than conventional spark plugs and have a 5/8' hex for easier access.Combustion Chamber Volume: 87cc Intake Runner Volume: 215cc Exhaust Runner Volume: 175cc Intake Valve Diameter: 2.11' Exhaust Valve Diameter: 1.66' Valve Stem Diameter: 11/32' Valve Guides: Manganese Bronze Deck Thickness: 5/8' Valve Spring Diameter: 1.46' Valve Spring Maximum Lift: 0.575' Rocker Stud: 7/16' Guideplate: Hardened Steel Pushrod Diameter: 5/16' Valve Angle: 14° Exhaust Port Location: Stock Ram Air IV Spark Plug Fitment: 14mm x 3/4' Reach,
Gasket SeatValve Lift Intake Exhaust .100' 72 56 .200' 138 106 .300' 198 141 .400' 239 163 .500' 264 172 .600' 275 185 .700' N/A N/A Flow Numbers as tested by Edelbrock's SuperFlo SF-1020 flow bench @ 28' H2O
Part TypeCylinder Head
BrandEDELBROCK
Package Height9.0
Package Width11.5
Package Length25.7
Weight36.3 PG
Retainers IncludedYes
Guideplates IncludedYes
Oiling StyleThrough pushrod
Valve Seats MachinedYes
Heat CrossoverYes
Number Of Springs Per ValveSingle
Damper Spring IncludedYes
Cylinder Head TypeStandard
Valve Stem Seals IncludedYes
Intake Valve Diameter2.11 in (53.594 mm)
Valve Guide MaterialManganese bronze
Outside Diameter Of Outer Spring1.46 in (37.1 mm)
Steam Holes DrilledNo
Rocker Arm Studs IncludedYes
Retainer MaterialSteel
Cnc-Machined Combustion ChamberNo
Exhaust Valve Diameter1.66 in (42.164 mm)
Part CategoryPerformance Parts
Cylinder Head MaterialAluminum
Intake Port LocationStandard
Rocker Arm Nut Thread Size (In.)7/16"-20
Emission50 State Legal
Exhaust Valves IncludedYes
Locks IncludedYes
Engine Make/SizePontiac 326-455
Lock Style7 degree
Rocker Arms IncludedNo
Rocker Arm Nuts IncludedNo
Cylinder Head FinishNatural
Intake Valve Angle14
Maximum Valve Lift0.575 in (14.605 mm)
Valve Seat MaterialDuctile iron
FinishCast Aluminum
Valve Springs IncludedYes
UsageStreet/Performance
Valve Seat Machine Style3-angle
Valve Guides IncludedYes
Cnc-Machined Intake RunnerNo
Intake Valves IncludedYes
QuantitySold individually
Accessory Bolt Holes DrilledYes
Exhaust Runner Volume (Cc)175
Exhaust Port LocationStandard
TypeComplete
Combustion Chamber Volume (Cc)87
Machined For O-RingNo
PreparationBolt On (Not Required)
Cylinder Head StyleAssembled
Part FitmentSemi Universal
Valve Cover Mounting StylePerimeter bolt
Valve Stem Seal StylePositive stop
Intake Runner Volume (Cc)215
Cnc-Machined Exhaust RunnerNo
Vendor Part Number60579
Package Qty1
Package TypeEA
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