Edelbrock Cylinder Head E-Street Stud Mount 170cc Pair 289/302/351W

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  • Made In The USA
  • Provides Excellent Power
  • Improves Torque
  • RPM Range Up To 5500RPM

Pair of Edelbrock 170cc E-Street Stud Mount Cylinder Heads for 289, 302 and 351W Engines.

This pair of Edelbrock 170cc Aluminum E-Street Cylinder Heads is intended for operating in the idle state up to the 5500 RPM range. This 1.90" head is ideal for the stock pistons in your 289, 302 or 351W small block engine and use a 3/8" stud mount. Fabricated from A356 aluminum in the USA and heat treated to T-6 specifications, these heads are a reliable, quality, direct fit replacement for the standard, stock cylinder heads on the small block engines.

Specifications and Dimensions:
- 60cc Combustion Chamber Volume
- 170cc Intake Runner Volume
- 60cc Exhaust Runner Volume
- Intake Valve Diameter of 1.90"
- Exhaust Valve Diameter of 1.60"
- Manganese Bronze Valve Guides
- Deck Thickness of 5/8"
- 1.460" Valve Spring Diameter
- Valve Spring Maximum Lift of .550"
- 3/8" Rocker Stud with Guide Plate
- Hardended Steel Guide Plate
- Diameter 5/16" Pushrod
- Stock Exhaust Port Location
- 14mm x 3/4 ReachSpark Plug Fitment
- Made In USA

*289 and 302 engine sizes require head bolt bushings.

The intake and exhaust ports are 1.90” and 1.60” respectively, both a larger size than the stock valves, which results in increased power. The combustion chamber features an advanced, modern design for greater mileage potential and improved efficiency. The rocker stud bosses have Heli-Coil threaded inserts so no damage occurs and the torque load is properly dispersed. For extra protection from wear in your engine, there are hardened spring cups between the valve springs and casting as well. These fresh Edelbrock E-Street Cylinder Heads are not compatible with the Hydraulic Roller Camshafts and must be used with hydraulic flat tappet camshafts with .550” of max lift.

Purchase this brand-new Pair of Edelbrock (5023) 170cc E-Street Stud Mount Cylinder Heads for your vehicle's 289, 302 or 351W Engine from CJ Pony Parts today!

California Residents: Proposition 65 Warning

Installation Videos

Vehicle Fitment

This product will fit the following Bronco years:

This product will fit the following F-100 years:

  • 1970,
  • 1971,
  • 1972,
  • 1973,
  • 1974,
  • 1975,
  • 1976,
  • 1977,
  • 1978,
  • 1979,

This product will fit the following Mustang years:

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I have a 351w out of a 1990 f150. Will these heads work?

Asked by: Hotrod0620
Yes they should.
Answered by: rk cjpp
Date published: 2019-05-31

Hi, may I use the stock pushrods and roller rocket with this heads or I need another ones? My mustang is a ‘70 302.

Asked by: Josu1965
The pushrods depend on the cam being used. I would suggest a set of aftermarket roller rockers.
Answered by: rk cjpp
Date published: 2019-05-14

Hi, what for pushrods must I buy for this heads ? I've a 1969 Mustang with 351w

Asked by: Lancelot
You should use an adjustable push rod to find the correct length of the pushrods.
Answered by: rk cjpp
Date published: 2019-03-07

I have 88 Gt with 302 stock heads bottom end is bored 30 over x303 cam ,24lb fuel injection ,70mm tb,cold air intake my question is will these heads work on my car

Asked by: Ezmoney
No, sorry not these E-Street Cylinder Heads will not work on your particular year and model engine. These cylinder heads are not compatible with hydraulic roller camshafts, also they do not have the provision for the exhaust heat crossover to mention a few reasons, however Edelbrock does offer and have specific Performer 5.0 Cylinder Heads which were designed and intended for the Fox Body Mustang's with an average 37 HP bolt-on you will be very satisfied with the performance you will fell in the seat of your ants, and increase in acceleration, part number # 60379 X 2, will get you where you will not be disappointed....
Answered by: Edelbrock
Date published: 2019-01-06

Will these heads work on my '91 5.0 with stock cam, BBK shorties and Edelbrock performer RPM intake? Will the stock rocker arms work with them?

Asked by: Jaxon83
No, Sorry, E-Street cylinder heads are not to be used with hydraulic roller camshafts and not for emissions, as they do not have the exhaust crossover so your EGR will not function or work also...
Answered by: Edelbrock
Date published: 2018-11-21

I see that the 5023 heads have square exhaust ports. What shorty headers are compatible?

Asked by: Rickybee
Please call toll free at 1-800-888-6473 and speak with a sales rep. We would need to know what year and model of vehicle you have.
Answered by: rk cjpp
Date published: 2018-10-05

Will this heads work on my 91 mustang 5.0 with b303 cam and cobra intake

Asked by: Reyfox
NO they will not work at all, please check out the Performer 5.0 cylinder heads 60379....
Answered by: Edelbrock
Date published: 2018-09-18

Hello, Do these heads are direct fit for a 94 mustang gt? Nice combo with e 303 camshaft? Thank s Mikaël

Asked by: mikaeldelansay
NO sorry, these E-Street cylinder heads are not recommended for hydraulic roller camshafts, even with the E-303, your 1994 Mustang GT needs an exhaust crossover for the intake manifold, check out the correct cylinder heads the Edelbrock Performer 5.0L versions # 60379, and these are sold individually, so # 60379 X 2....
Answered by: Edelbrock
Date published: 2018-04-30
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