New Edelbrock heads?

[1990Coupe]

Edelbrock 5025 Edelbrock E-Street Cylinder Heads


Well they are "new to me" sub 1k and aluminum. Do they look decent?? Has anyone run them??

Small-Block Ford


Specifications:

Chamber Volume: 60cc
Deck Thickness: 5/8"
Valve Spring Diameter: 1.25"
Max Lift: .550"
Valve Spring Installed Height: 1.750"
Rocker Studs: 3/8" with Guide Plate
Pushrod Diameter: 5/16"
Intake Port Volume: 170cc
Intake Valve Diameter: 2.02"
Exhaust Port Volume: 60cc
Exhaust Valve Diameter: 1.60"


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


I have a cobra intake, stock everything else. These sound nice for me (and my budget )

 

[NIKwoaC]

I've heard that they are decent heads, but designed strictly for mild street builds. IIRC, they have "soft" valve springs that don't handle revving much past 5500, and the spring perch is machined so that swapping to better/bigger springs wouldn't be easy or cheap. I can't quote dyno numbers, but you can see from the flow numbers that they flow just a little bit less than TFS 170s.

On a side note, I always find it funny when cylinder head manufacturers quote flow numbers for their assembled heads at higher valve lift than what the included valve springs can handle. I suppose you could always change the valve springs and run a bigger cam, but for assembled heads it is kind of misleading.

 

[1990Coupe]

I had planned on doing a mild street build, something to compliment my Cobra intake. So a Cam thats not too aggressive, and heads to match up well with the intake. I'm going to have 3.55's installed soon, so with a mild head/cam upgrade over the winter it should move pretty well.

I wonder if i should spend the extra 3-400 beans and just go Trick Flow.

 

[Shaolin Crane]

trickflow

 

[Bullitt95]

Edelbrock 5025 Edelbrock E-Street Cylinder Heads

Performance should be comparable to the GT40X's.

 

[russ1979]

what is gt-40x performance like then?

 

[Beasty306GT]

go with the trick flow heads

 

[Bullitt95]

what is gt-40x performance like then?

Somewhere in between that of the GT40P's and the Edelbrock 60379's. Middle of the road in other words.

 

[ROCUN]

A good head for the money. Run your cobra intake,tfs stage 1 cam, and these heads should be at least 300rwhp. If you have the money the afr165 or 170 trickflow would be better. But nothing wrong with these if you on a tight budget.

 

[1990Coupe]

Thanks for the reply rocun!

I think i may just save up for a tfs1 cam and tf170's. Probably the better way to go. I want something to last a while and be a great NA combo.

 

[russ1979]

Thanks for the reply rocun!

I think i may just save up for a tfs1 cam and tf170's. Probably the better way to go. I want something to last a while and be a great NA combo.

that may be a good idea. in my 30 years of life i have found that it is always a good idea to do it right the 1st time rather then pay for it twice.

 

[ROCUN]

I run a cobra intake,afr165s,and tfs stage1 car was 326rwhp and about same rwtq a good improvement over stock and very streetable. Then added s-trim blower 454rwhp and still very streetable.