$$1,008.50Engine \ Cylinder Heads \ Chevy Small Block Aluminum Heads5089
EDL5089
Edelbrock 5089 Small Block Chevy E-STREET Cylinder Heads 185cc, 64cc Chambers Assembed, Pair
E-STREET 185 - '86 & EARLIER   Edelbrock's all new line of heads are designed for entry-level street performance engines and ideal for operating in the idle to 5500 rpm range. Manufactured in the USA, by Edelbrock, these heads feature A356 aluminum castings that are heat treated to T-6 spec for superior casting strength and quality. ...
Edelbrock5089 Small Block Chevy E-STREET Cylinder Heads 185

Edelbrock

Edelbrock 5089 Small Block Chevy E-STREET Cylinder Heads 185cc, 64cc Chambers Assembed, Pair

Item #: EDL5089

Mfg Part #: 5089

UPC #: 085347050895

Applies To Continental U.S. orders only

Specifications
Cylinder Head Specifications
Cylinder Head Style
Assembled
Cylinder Head Material
Aluminum
Intake Port Shape
Rectangular
Intake Valve Diameter (in)
2.02 in.
Cylinder Head Finish
Natural
Combustion Chamber Volume (cc)
64
CNC-Machined Combustion Chamber
No
Intake Runner Volume (cc)
185cc
Exhaust Runner Volume (cc)
60cc
CNC-Machined Intake Runner
No
CNC-Machined Exhaust Runner
No
Intake Port Location
Standard
Exhaust Port Shape
Square
Exhaust Port Location
Standard
Spark Plug Style
Straight
Intake Valves Included
Yes
Exhaust Valves Included
Yes
Exhaust Valve Diameter (in)
1.600 in.
Valve Springs Included
Yes
Maximum Valve Lift (in)
0.550 in.
Outside Diameter of Outer Spring (in)
1.460 in.
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 Seals Included
Yes
Valve Stem Seal Style
Umbrella
Valve stem diameter (in)
11/32 in.
Rocker Arm Studs Included
Yes
Rocker Arm Nut Thread Size
3/8-24 in.
Rocker Arms Included
No
Rocker Arm Nuts Included
No
Guideplates Included
Yes
Guideplate Pushrod Size
5/16 in.
Valve Guide Material
Manganese bronze
Deck thickness
9/16"
Guideplates Material
Hardended steel
Valve Cover Mounting Style
Perimeter bolt
Accessory Bolt Holes Drilled
Yes
Intake Valve Angle
23 degree
Valve Guides Included
Yes
Valve Seats Machined
Yes
Valve Seat Machine Style
3-angle
Valve Seat Material
Powdered metal
Steam Holes Drilled
No
Oiling Style
Through pushrod
Machined for O-Ring
No
Heat Crossover
No
Exhaust port location
Stock
Spark plug fitment
14mm x 3/4" reach, gasket seat
Quantity
Sold as a pair.
Notes
Designed for use with hydraulic flat tappet camshafts less than .550 in. lift. Requires use of hardened pushrods. The valve and seat combination, used in these heads, is not recommended for use with a hyd
General
Brand
Edelbrock
Item #
EDL5089
Mfg Part #
5089
UPC
085347050895
Description

E-STREET 185 - '86 & EARLIER

 

Edelbrock's all new line of heads are designed for entry-level street performance engines and ideal for operating in the idle to 5500 rpm range. Manufactured in the USA, by Edelbrock, these heads feature A356 aluminum castings that are heat treated to T-6 spec for superior casting strength and quality. Their modern combustion chamber designs improve the combustion process and larger than stock intake and exhaust ports move more air through your engine. These features improve an engine's efficiency, resulting in more horsepower and torque and improved mileage potential. Additional qualities include hardened spring cups for long-term wear protection and Heli-Coil threaded inserts in the rocker stud bosses for increased strength; these are the details that most low-cost competitors leave out of their heads. All E-Street cylinder heads are sold in pairs and Made in the USA. Dyno tests showed a gain of 16 hp and 11 ft-lbs of torque over our overseas competitor..

 

E-Street 185 - '86 & earlier with 70cc combustion chambers (with straight plugs) 5073*
E-Street 185 - '86 & earlier with 64cc combustion chambers (with straight plugs) 5089*

 

Technical Notes: Use with Hydraulic Flat Tappet Camshafts .550" max lift. (NOT Compatible with Hydraulic Roller Camshafts) Recommended spark plugs are Champion RC12YC or equivalent 14mm x 3/4" reach with flat gasket seat. Requires hardened pushrods. Not legal for sale or use on pollution controlled motor vehicles.

 

Flow Numbers as tested by Edelbrock's SuperFlo SF-1020 flow bench @ 28" H2O #5073, #5089
Valve Lift  .100"  .200"  .300"  .400"  .500"  .600"  .700"
Intake:         63     125   182     225    248     249    N/A
Exhaust:      51       99    131    153    163     168    N/A

* Not legal for sale or use on pollution controlled motor vehicles.

  • Entry Level Street Performance Upgrade
  • A356 Aluminum
  • Sold As A Pair
  • Edelbrock Quality And Performance
  • Affordable Price
  • Combustion chamber volume 70cc | 64cc
  • Intake runner volume 185cc
  • Exhaust runner volume 60cc
  • Intake valve diameter 2.02"
  • Exhaust valve diameter 1.60"
  • Valve stem diameter 11/32"
  • Valve guides Manganese bronze
  • Deck thickness 9/16"
  • Valve spring diameter 1.460"
  • Valve spring maximum lift .550"
  • Rocker stud 3/8" with guide plate
  • Guideplate Hardended steel
  • Pushrod diameter 5/16"
  • Valve angle 23 degree
  • Exhaust port location Stock
  • Spark plug fitment 14mm x 3/4" reach, gasket seat
  • Made In USA
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