Atech Motorsports

Edelbrock Performer Pontiac 389-455 Cylinder Head, Assembled Hydraulic Roller

$1,338.99 USD

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Product variants

Quantity

Brand:

Edelbrock

Manufacturer's Part Number:

60575

Part Type:

Cylinder Heads

Product Line:

Edelbrock Performer Cylinder Heads

Summit Racing Part Number:

EDL-60575

UPC:

085347605750

Combustion Chamber Volume (cc):

Intake Runner Volume (cc):

215cc

Exhaust Runner Volume (cc):

175cc

Cylinder Head Style:

Assembled

Cylinder Head Material:

Cast aluminum

Intake Valve Diameter (in.):

2.110 in.

CNC-Machined Combustion Chamber:

CNC-Machined Intake Runner:

CNC-Machined Exhaust Runner:

Intake Port Location:

Standard

Exhaust Port Shape:

Ram Air IV

Exhaust Port Location:

Standard

Intake Valves Included:

Yes

Exhaust Valves Included:

Yes

Exhaust Valve Diameter (in.):

1.660 in.

Valve Springs Included:

Yes

Maximum Valve Lift (in.):

0.575 in.

Camshaft Style:

Hydraulic roller

Outside Diameter of Outer Spring (in.):

1.460 in.

Damper Spring Included:

Yes

Number of Springs Per Valve:

Dual

Retainers Included:

Yes

Retainer Material:

Steel

Locks Included:

Yes

Lock Style:

7 degree

Valve Stem Seals Included:

Yes

Valve Stem Seal Style:

Positive stop

Rocker Arm Studs Included:

Yes

Rocker Arm Nut Thread Size:

7/16 in.-20

Rocker Arms Included:

Rocker Arm Nuts Included:

Guideplates Included:

Yes

Guideplate Pushrod Size:

5/16 in.

Valve Cover Mounting Style:

Perimeter bolt

Accessory Bolt Holes Drilled:

Yes

Intake Valve Angle:

Valve Guides Included:

Yes

Valve Guide Material:

Manganese bronze

Valve Seats Machined:

Yes

Valve Seat Machine Style:

3-angle

Valve Seat Material:

Ductile iron

Cylinder Head Color:

Natural

Steam Holes Drilled:

Oiling Style:

Through pushrod

Machined for O-Ring:

Heat Crossover:

Yes

Remanufactured:

Quantity:

Sold individually.

Notes:

These heads require Ram Air IV (round port) style exhaust manifolds or headers and Edelbrock head bolt kit 8549.

CARB EO Number(s):

D-215-94

Emissions:

California EO Approved

Edelbrock Performer Cylinder Heads

All Edelbrock aluminum cylinder heads feature threaded inserts in the rocker studs and exhaust manifold bolt holes for superior strength and durability. They also include hardened seats, bronze valve guides, and fully machined valve cover rails for a more consistent gasket seal. They offer improved power throughout the rpm range for greater throttle response and top-end horsepower. The intake and exhaust runners are CNC-machine profiled for superior flow and performance.

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