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$1,779.95
$1,380.99
Edelbrock 605719 Performer RPM Cylinder Head, Pontiac 389-455
Edelbrock 605719 Performer RPM Cylinder Head, Pontiac 389-455

Edelbrock 605719 Performer RPM Cylinder Head, Pontiac 389-455

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Edelbrock 605719 Performer RPM Cylinder Head, Pontiac 389-455
Edelbrock 605719 Performer RPM Cylinder Head, Pontiac 389-455
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We estimate this item will ship on or before October 26th.
Part # 325605719
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Important Messages:

  • This item ships directly from the manufacturer. It may take an additional 4 business days for Edelbrock to ship this item.
  • This item ships via Ground Shipping only. Expedited and Air shipping options are not available.

Details

Cylinder Head Style:
Assembled
Material Type:
Aluminum
Combustion Chamber:
87cc
Intake Valve Diameter:
2.11"
Exhaust Valve Diameter:
1.66"
Finish:
Polished
Sold in Quantity:
Each
CNC-Machined Combustion Chamber:
No
Intake Port Location:
Standard
Exhaust Port Location:
Standard
Exhaust Port Shape:
Ram Air IV
Intake Valves Included:
Yes
Exhaust Valves Included:
Yes
Valve Spring Included:
Yes
Maximum Lift:
0.575"
Outside Diameter of Outer Spring:
1.46"
Damper Spring Included:
Yes
Number of Springs Per Valve:
Single
Retainers Included:
Yes
Retainer Material:
Steel
Locks Included:
Yes
Lock Style:
7 Degree
Valve Stem Seal Type:
Positive Stop
Rocker Arm Studs Included:
Yes
Rocker Arms Included:
No
Rocker Arm Nuts Included:
No
Guideplates Included:
Yes
Guideplate Pushrod Size:
16-May"
Valve Guide Material:
Manganese bronze
Valve Seats Machined:
Yes
Valve Seat Machine Style:
3-angle
Valve Seat Material:
Ductile Iron
Steam Holes Drilled:
No
Oiling Style:
Through Pushrod
Machined for O-Ring:
No
Heat Crossover:
Yes
Intake Valve Angle:
14
Intake Runner Volume:
215cc cu. in.
Exhaust Runner Volume:
175cc cu. in.
CNC-Machined Exhaust Runner:
No
CNC-Machined Intake Runner:
No
Valve Stem Seals Included:
Yes
Accessory Bolt Holes Drilled:
Yes
Valve Guides Included:
Yes
GTIN Code:
085347990412

Info

These cylinder heads for outstanding performance gains in 1962-79 389-455 c.i.d. Pontiac engines. They are patterned after the 1969-70 Air IV Pontiac cylinder head. They feature 87cc combustion chambers designed to maximize performance while using less expensive, low-octane fuel with streetable 9.5:1 compression ratio. Our Performer RPM heads with the 72cc combustion chamber are for higher compression engine.
  • Out-of-the-Box Bolt-On Performance
  • Hand-Blended Intake and Exhaust Bowls
  • CNC-Matched Intake/Exhaust Ports in Std Location
  • Thicker Deck Surfaces than Other Brands

Installation Instructions (PDF)

Notes

These heads require Ram Air IV (round port) style exhaust manifolds or headers and Edelbrock head bolt kit 8549.
Some parts are not legal for use in California or other states with similar laws/regulations

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