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1/13/2022 7:17 PM  #1


Other than the GT40p heads....

Are there other heads like 289 or 351 heads that would be a power maker on a 289? Been trying to locate some GT40p heads close by but aint had any luck.


Its really me....I fixed my caps lock .
 

1/13/2022 9:09 PM  #2


Re: Other than the GT40p heads....

Port those 289 heads to the max and run them.  The Early ones have the smallest combustion chamber to max compression ratio.  that gives the most power.  Then put in the largest valves you can. (you will not be able to go very large)

Other than that, your best bet will be one of the aluminum heads proliferating in the industry.


Original owner - 351w,T-5, 4whl disks, power R&P
 

1/14/2022 6:09 AM  #3


Re: Other than the GT40p heads....

There’s a wealth of information about porting here:

http://tmoss.efidynotuning.com/

 

1/14/2022 8:08 AM  #4


Re: Other than the GT40p heads....

Just buy a set of Edelbrocks and be done. 

 

1/14/2022 8:45 AM  #5


Re: Other than the GT40p heads....

TKOPerformance wrote:

Just buy a set of Edelbrocks and be done. 

 
That’s what I did, because of “core shift”🤪


Good work ain't cheap, Cheap work ain't good!   Simple Man
 

1/14/2022 10:50 AM  #6


Re: Other than the GT40p heads....

Rudi wrote:

TKOPerformance wrote:

Just buy a set of Edelbrocks and be done. 

 
That’s what I did, because of “core shift”🤪

I agree.  I think if you run the numbers, the Edelbrock heads will win out. 
 


65 Fastback, 351W, 5-speed, 4 wheel discs, 9" rear,  R&C Front End.
 

1/14/2022 11:34 AM  #7


Re: Other than the GT40p heads....

When I worked on cleaning up the ports on my 289 heads the “emissions bump”  water passageway core was so off kilter that I wonder why it didn’t leak on day one of its first start up in 1968.
The time, cost and effort to get it welded up, hardened seats, new valve guides and surfaced was not worth it so I just ordered the Edelbrocks.
It’s a good idea to talk to “those in the know” on making a plan for the final outcome of your engine build instead of just throwing new parts in it Willy-Nilly.
Making horse power needs to be a compatible combination of heads, cam, intake manifold,  carburetor  etc.
  But, I’m not saying heads alone won’t be a slight benefit, like less weight.


Good work ain't cheap, Cheap work ain't good!   Simple Man
 

1/14/2022 11:55 AM  #8


Re: Other than the GT40p heads....

which edelbrock heads did yall get?


Its really me....I fixed my caps lock .
     Thread Starter
 

1/14/2022 1:15 PM  #9


Re: Other than the GT40p heads....

#60225


Good work ain't cheap, Cheap work ain't good!   Simple Man
 

1/14/2022 8:22 PM  #10


Re: Other than the GT40p heads....

Rudi wrote:

#60225

LORD THEY 900.00 EACH


Its really me....I fixed my caps lock .
     Thread Starter
 

1/14/2022 9:07 PM  #11


Re: Other than the GT40p heads....

Like the racers say..."speed costs money...how fast do you want to go?"


"you get what you pay for, good work isn't cheap, and there are NO free lunches...PERIOD!"
 

1/14/2022 10:16 PM  #12


Re: Other than the GT40p heads....

mine is driven daily ,,,, my old car was faster than it needed to be mostly stock


Its really me....I fixed my caps lock .
     Thread Starter
 

1/14/2022 10:23 PM  #13


Re: Other than the GT40p heads....

Yup Chinese ones are cheaper, you get what you pay for.


Good work ain't cheap, Cheap work ain't good!   Simple Man
 

1/15/2022 12:15 PM  #14


Re: Other than the GT40p heads....

BILLY WALTON from GEORGIA wrote:

Rudi wrote:

#60225

LORD THEY 900.00 EACH

Billy - Suggest you verify, but I believe that $900 price is for a pair of Edelbrock heads.
I have:
Edelbrock Performer Heads – #60329
Edelbrock Performer RPM Manifold – #7181
 


65 Fastback, 351W, 5-speed, 4 wheel discs, 9" rear,  R&C Front End.
 

1/16/2022 1:39 AM  #15


Re: Other than the GT40p heads....

BobE wrote:

BILLY WALTON from GEORGIA wrote:

Rudi wrote:

#60225

LORD THEY 900.00 EACH

Billy - Suggest you verify, but I believe that $900 price is for a pair of Edelbrock heads.
I have:
Edelbrock Performer Heads – #60329
Edelbrock Performer RPM Manifold – #7181

says sold individually


 

https://www.jegs.com/i/Edelbrock/350/60329/10002/-1?gclid=CjwKCAiA_omPBhBBEiwAcg7smeVmWy28vwtafeEzOv2HenyGymEcgy8FFhKcCZEaIpknk-qV3UkOahoCuWYQAvD_BwE

says 956.00 each
 

Last edited by BILLY WALTON from GEORGIA (1/16/2022 2:05 AM)


Its really me....I fixed my caps lock .
     Thread Starter
 

1/16/2022 7:00 AM  #16


Re: Other than the GT40p heads....

inflation and tariffs on aluminum makes em high


"If you think you can do a thing or think you can't do a thing, you're right."     Henry Ford
 

1/16/2022 8:20 AM  #17


Re: Other than the GT40p heads....

I would call to verify.  Edelbrock heads have been listed as sold each for a long time, but two heads always showed up in the box.  I don't think they sell assembled heads individually. 

 

1/16/2022 9:36 AM  #18


Re: Other than the GT40p heads....

They are sold individually and anyone who thinks you can purchase a pair of loaded alum heads for $900 is dreaming.

And so as to not prolong further discussion, I called summit and they verified these are listed and priced individually; as also noted in the description.

Start saving your money....

 

1/16/2022 10:24 AM  #19


Re: Other than the GT40p heads....

I guess if a person got desperate and needed some heads now, one could search the lizzard lots for a set of E7TE heads.   The cc's vary a bit on them, but that would probably give you your most bang for your bucks, with hardened valve seats and such that could be one cleaned and prepped and installed quickly.

Just got to remember when you are mixing old blocks and newer heads you need to drill some holes.  Many have claimed they didn't and it worked out fine for them.   But Ford moved the steam holes to the side. 

Look at the pic of the AFR head that is in another thread right here.  They solved the dilima with the grooved slot.


If multiple things can go wrong, the one that will go wrong will be the one that causes the most damage.
 

1/16/2022 10:26 AM  #20


Re: Other than the GT40p heads....

Wow!  While I bought mine 15 years ago, I wouldn't have thought the price would have doubled.  Plus, the Summit site indicates expected delivery is June 2022.


65 Fastback, 351W, 5-speed, 4 wheel discs, 9" rear,  R&C Front End.
 

1/16/2022 11:42 AM  #21


Re: Other than the GT40p heads....

BobE wrote:

Wow!  While I bought mine 15 years ago, I wouldn't have thought the price would have doubled.  Plus, the Summit site indicates expected delivery is June 2022.

 
When I got mine about that time I paid around 1200 cdn for both. Good old days again?


Good work ain't cheap, Cheap work ain't good!   Simple Man
 

1/16/2022 1:01 PM  #22


Re: Other than the GT40p heads....

Here's a link to Jegs:

https://www.jegs.com/i/Edelbrock/350/5023/10002/-1?gclid=Cj0KCQiAoY-PBhCNARIsABcz772DM2fAa4d5Ew1KS6Sn5dKKvqAHVFPPWbHcLv2wIl9fjL_vgvlsalkaAksBEALw_wcB

$1,152/pair assembled.  Anticipated ship date is better too.  They used to be more like $999/pair.  The prices honestly haven't gone up that much in 20 years. 
 

 

1/16/2022 1:03 PM  #23


Re: Other than the GT40p heads....

If Edelbrocks are the same price as AFR 185s, why would ya buy the Eddys?


Bob. 69 Mach 1, 393W, SMOD Toploader, Armstrong  steering.
 

1/16/2022 2:18 PM  #24


Re: Other than the GT40p heads....

Thats nuts I can find better places to spend that money on the car.


Its really me....I fixed my caps lock .
     Thread Starter
 

1/16/2022 2:28 PM  #25


Re: Other than the GT40p heads....

BILLY WALTON from GEORGIA wrote:

Thats nuts I can find better places to spend that money on the car.

You're catching on Billy. That sbf you have right now is enough for the stang. Run what ya brung and be happy. Me thinks too often we get caught up in the hoopla and before you know it, piles of money are thrown at unnecessary stuff. It's your daily driver so, tune it, and take care of all the safety items. Then, drive the piss out of it and have a smile for every mile....

 

Board footera


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