$$1,034.50Engine \ Cylinder Heads \ Ford Small Block Aluminum Heads5025
EDL5025
Edelbrock 5025 Small Block Ford 170cc E-STREET Cylinder Heads, 2.02 in. intake Valve, Pair
Edelbrock - E-Street 170cc   The Edelbrock #5025 E-Street cylinder heads are designed for Ford 289-351 W V8 applications. The Edelbrock E-Street cylinder heads offer American made quality and affordable performance. E-Street cylinder heads feature as-cast ports and are designed for entry-level street performance applications operating in ...
Edelbrock5025 Small Block Ford 170cc E-STREET Cylinder Head

Edelbrock

Edelbrock 5025 Small Block Ford 170cc E-STREET Cylinder Heads, 2.02 in. intake Valve, Pair

$1,034.50

Item #: EDL5025

Mfg Part #: 5025

UPC #: 085347050253

Applies To Continental U.S. orders only

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Qty Available: 0

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Specifications
Cylinder Head specifications
Cylinder Head Style
Assembled
Cylinder Head Material
Aluminum
Combustion Chamber Volume (cc)
60cc
CNC-Machined Combustion Chamber
No
Intake Runner Volume (cc)
170cc
Exhaust Runner Volume (cc)
60cc
CNC-Machined Intake Runner
No
CNC-Machined Exhaust Runner
No
Combustion Chamber Style
Heart
Intake Port Shape
Rectangular
Intake Port Location
Standard
Exhaust Port Shape
Square
Exhaust Port Location
Standard
Spark Plug Style
Angled
Spark Plug Type
14mm Spark Plug, .750 Reach
Intake Valves Included
Yes
Intake Valve Diameter (in)
2.020 in.
Intake Valve Angle
20 Degree
Exhaust Valves Included
Yes
Exhaust Valve Diameter (in)
1.600 in.
Exhaust Valve Angle
20 Degree
Valve Springs Included
Yes
Valve Spring Type
Single w/ Damper
Maximum Valve Lift (in)
0.550 in.
Outside Diameter of Outer Spring (in)
1.460 in.
Damper Spring Included
Yes
Valve Spring Pressure Closed
N/A
Valve Spring Pressure Open
N/A
Retainers Included
Yes
Retainer Material
7 degree
Locks Included
Yes
Lock Style
7 degree
Valve Stem Seals Included
Yes
Valve Stem Seal Style
Umbrella
Rocker Arm Studs Included
Yes
Rocker Arm Studs Size
3/8-24 in.
Rocker Arms Included
No
Rocker Arm Nuts Included
No
Guideplates Included
Yes
Guideplate Pushrod Size
5/16 in.
Valve Cover Mounting Style
Perimeter bolt
Accessory Bolt Holes Drilled
Yes
Valve Guides Included
Yes
Intake Valve Guide Material
Manganese bronze
Exhaust Valve Guide Material
Manganese Bronze
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
Yes
Quantity
Sold as a pair.
Notes
Designed for use with hydraulic flat tappet camshafts. Requires use of hardened pushrods. Part number 9680 head bolt bushing kit required for use with 7/16 in. head bolts. Not rrecommended for use with a hydraulic or mechanical roller camshafts.
Applications
Make
Ford
Engine Family
Ford small block Windsor
Engine Size
4.7L/289-5.8L/351
Years
1963-1995
General
Brand
Edelbrock
Item #
EDL5025
Mfg Part #
5025
UPC
085347050253
Description

Edelbrock - E-Street 170cc

 

The Edelbrock #5025 E-Street cylinder heads are designed for Ford 289-351 W V8 applications. The Edelbrock E-Street cylinder heads offer American made quality and affordable performance. E-Street cylinder heads feature as-cast ports and are designed for entry-level street performance applications operating in the idle-to-5500 rpm range. The modern combustion chamber designs improve the combustion process and larger than stock intake and exhaust ports move more air through your engine for improve efficiency. For use on pre-pollution controlled vehicles only.INSTALLATION NOTES: - Ideal for operating in the idle to 5500 rpm range - Use with hydraulic flat tappet camshafts, .550" maximum lift - not compatible with hydraulic roller camshafts - 289-302 with 7/16" head bolts require #9680 head bolt kit - 2.02" heads require additional piston to valve clearance - Recommended spark plugs are Champion RC12YC or equivalent 14mm x 3/4" reach with flat gasket seat. - Requires hardened pushrods. 289-302 c.i.d. with 7/16" head bolts requires #9680 head bolt bushing kit.

 

  • Ideal for operating in the idle to 5500 rpm range
  • Made in the USA from A356 aluminum and heat treated to T-6 spec
  • Larger than stock intake and exhaust ports for increased power
  • Modern combustion chamber design for improved efficiency and mileage potential
  • Heli-Coil threaded inserts in the rocker stud bosses for proper torque load without damaging threads
  • Hardened spring cups between the valve springs and casting for wear protection
  • Cylinder Head Specifications

 

Description Complete (Pair)
E-Street 170 with 2.02 in. intake valves 5025

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. 289-302 c.i.d. with 7/16" head bolts requires #9680 head bolt bushing kit. 1.90" heads are ideal for stock pistons; 2.02" heads require additional piston to valve clearance. Rocker arm studs & guide plates are not included with bare versions of E-Street cylinder heads.

 

Flow Numbers as tested by Edelbrock's SuperFlo SF-1020 flow bench @ 28" H2O #5025
Valve Lift:   .100"   .200"   .300"   .400"   .500"   .600"   .700"
Intake:            65     121      174     216     242     249      N/A
Exhaust:         42       92      130     150     162     168      N/A

 

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

  • Combustion chamber volume 60cc
  • Intake runner volume 170cc
  • Exhaust runner volume 60cc
  • Intake valve diameter 1.90" & 2.02"
  • Exhaust valve diameter 1.60"
  • Valve stem diameter N/A
  • Valve guides Manganese bronze
  • Deck thickness 5/8"
  • 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 N/A
  • Exhaust port location Stock
  • Spark plug fitment 14mm x 3/4 reach, gasket seat
  • Made In USA
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