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Pontiac Performer Aluminum Cylinder Heads
- Performer Cylinder Head
- 1962-1979 Pontiac 389-455ci
- Port Volume: 215cc/175cc
- 87cc Combustion Chambers
- 7/16" Rocker Studs
- Bare, Sold Each
Combustion Chamber Volume: 87cc Intake Runner Volume: 215cc Exhaust Runner Volume: 175cc Intake Valve Diameter: 2.11' (Valve not included) Exhaust Valve Diameter: 1.66' (Valve not included) Valve Guide Diameter: 11/32' Valve Guides: Manganese Bronze Deck Thickness: 5/8' Valve Spring Diameter: 1.46" Valve Spring Maximum Lift: .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' 264 175 .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 Height8.8
Package Width11.2
Package Length25.9
Weight30.8 PG
Part CategoryPerformance Parts
Cylinder Head MaterialAluminum
Intake Port LocationStandard
Emission50 State Legal
Exhaust Valves IncludedNo
Locks IncludedNo
Engine Make/SizePontiac 326-455
Retainers IncludedNo
Guideplates IncludedNo
Rocker Arms IncludedNo
Oiling StyleThrough pushrod
Rocker Arm Nuts IncludedNo
Cylinder Head FinishNatural
Valve Seats MachinedNo
Intake Valve Angle14
Valve Seat MaterialDuctile iron
Heat CrossoverYes
FinishCast Aluminum
Valve Springs IncludedNo
UsageStreet/Performance
Damper Spring IncludedNo
Valve Guides IncludedYes
Cnc-Machined Intake RunnerNo
Intake Valves IncludedNo
QuantitySold individually
Cylinder Head TypeStandard
Valve Stem Seals IncludedNo
Intake Valve Diameter2.11 in (53.594 mm)
Accessory Bolt Holes DrilledYes
Exhaust Runner Volume (Cc)175
Exhaust Port LocationStandard
Valve Guide MaterialManganese bronze
TypeBare
Combustion Chamber Volume (Cc)87
Machined For O-RingNo
PreparationRequires Professional Preparation (Bare)
Steam Holes DrilledNo
Rocker Arm Studs IncludedNo
Cylinder Head StyleBare
Part FitmentSemi Universal
Valve Cover Mounting StylePerimeter bolt
Intake Runner Volume (Cc)215
Cnc-Machined Exhaust RunnerNo
Cnc-Machined Combustion ChamberNo
Exhaust Valve Diameter1.66 in (42.164 mm)
Vendor Part Number60569
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations
