e5te?????
Senior User
Joined: Sep 2003
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From: NC
Originally posted by jwtaylor
Appreciate it DanQ. There is definitely a big difference in the two. I can remember now when I put the motor in that I looked at the exhaust port and it did have a huge thermactor bump. What were they thinking if you look in the exhaust manifolds there are two more bumps in each port as well. Crazy. Again appreciate it. Let me know what your end combo ends up being and how your truck performs, Later
Appreciate it DanQ. There is definitely a big difference in the two. I can remember now when I put the motor in that I looked at the exhaust port and it did have a huge thermactor bump. What were they thinking if you look in the exhaust manifolds there are two more bumps in each port as well. Crazy. Again appreciate it. Let me know what your end combo ends up being and how your truck performs, Later
I believe the AE and TE heads are the same for that year, with the exception of the 9cc larger combustion chamber, but I've never seen a set first hand.
Take care...
Dan Q
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Joined: Sep 2003
Posts: 150
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From: NC
JW:
No... I haven't had the Bronco on a dyno. And the E7s have not been ported (don't want to lose the velocity). Right now it has E5 castings on it (I think the E5AE if I'm remembering correctly, because we figured 8.2:1). I've got a Comp Cams 260H cam, Edlebrock dual plane intake, Edlebrock carb, been bored .030, fulll MSD ignition with the Ford dizzy. Hedman long tubes into 2.5 duals with high flow cats and dual Dynomax Bullets.
Soon to be most of the above with the E7TE heads, roller rockers, Holley Anhilator distributor, standard flow oil pump, Comp Cams 35-243-3 cam (226 deg in / 234 deg ex, .512 in / .531 ex lift on 111 lobe separation), and a 2200 RPM stall torque converter. Should be MUCH more fun when I put the larger tires on (and total hell on the smaller ones, since between the 4.11:1s and the front and rear lockers, they get spun pretty good and hard as is).
But... maybe I'll dyno the motor after I make the changes. If I can find one
Dan Q
No... I haven't had the Bronco on a dyno. And the E7s have not been ported (don't want to lose the velocity). Right now it has E5 castings on it (I think the E5AE if I'm remembering correctly, because we figured 8.2:1). I've got a Comp Cams 260H cam, Edlebrock dual plane intake, Edlebrock carb, been bored .030, fulll MSD ignition with the Ford dizzy. Hedman long tubes into 2.5 duals with high flow cats and dual Dynomax Bullets.
Soon to be most of the above with the E7TE heads, roller rockers, Holley Anhilator distributor, standard flow oil pump, Comp Cams 35-243-3 cam (226 deg in / 234 deg ex, .512 in / .531 ex lift on 111 lobe separation), and a 2200 RPM stall torque converter. Should be MUCH more fun when I put the larger tires on (and total hell on the smaller ones, since between the 4.11:1s and the front and rear lockers, they get spun pretty good and hard as is).
But... maybe I'll dyno the motor after I make the changes. If I can find one
Dan Q
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From: NC
Certainly JW... nice of you to ask.
I have a couple of odd bits to pick up once the heads are ready, and everything else is in my garage. Should be in the next two months, depending on how many trips my job makes me take.
Dan Q
I have a couple of odd bits to pick up once the heads are ready, and everything else is in my garage. Should be in the next two months, depending on how many trips my job makes me take.
Dan Q
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Hell if you want, take some picks as you go and show the progress of the project. You would think that engines would get old after a while but they don't so if you have time and interest keep me updated. You might also help others who are new and just need some exposure to different internals. Later and again good luck
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Joined: Sep 2003
Posts: 150
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From: NC
I think I'll do that JW. Sounds like a plan.
Thanks for being a positive person to such a "newbie" (ok... at least in this forum I'm a newbie).
Dan Q
Thanks for being a positive person to such a "newbie" (ok... at least in this forum I'm a newbie).
Dan Q
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E5AE-ca heads
A question for Dan Q: I am redoing my E5AE heads and decided to remove the Thermactor bump for better flow. I started on the first ex port and got the bump down smooth but still have a valley or groove in the roof of the head where the air hole was. I would like to grind here some more but am afraid I might hit water. Did you take the whole bump and the groove in the roof out? Also when finished with the porting,will it hurt to leave the air hole in the roof open, or should I get some half inch round stock and slide it in the opening in the rear of the head the lenght of the head to seal the Thermactor holes in the ports? I am going to do a 3 angle valve job and install a Edelbrock performer cam (mild) and Performer intake with roller chain and 600 performer carb and put it back in my 86 F-150. Thanks for the response- Bud in Arizona
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From: NC
Originally Posted by bigblueovalman
A question for Dan Q: I am redoing my E5AE heads and decided to remove the Thermactor bump for better flow. I started on the first ex port and got the bump down smooth but still have a valley or groove in the roof of the head where the air hole was. I would like to grind here some more but am afraid I might hit water. Did you take the whole bump and the groove in the roof out? Also when finished with the porting,will it hurt to leave the air hole in the roof open, or should I get some half inch round stock and slide it in the opening in the rear of the head the lenght of the head to seal the Thermactor holes in the ports? I am going to do a 3 angle valve job and install a Edelbrock performer cam (mild) and Performer intake with roller chain and 600 performer carb and put it back in my 86 F-150. Thanks for the response- Bud in Arizona
I'm trying to remember that casting. I think it was a one year casting that was a pain in the butt. In any event, on a truck, where velocity would mean more than volume, getting rid of the thermactor bump is a good start. Do not hog into the walls much more than needed to remove the bump and other obstructions. The air hole will not hurt you significantly. If you can plug it or fill with epoxy or something else that will withstand airflow/fuel and air you will be a little better off. Big thing on the truck motors that aren't intended for 7000 rpm use is keep your work mild. Velocity is the crucial thing, not volume. Otherwise you can lose big torque.
The rest of your planned buildup sounds good. Depending on the motors pumping ability, the carb may be A LITTLE small, but not much. A good 600 or 650 with vacuum secondaries should be right. Which manifold were you looking at? The dual plane manifolds were the torque thing, but there has been some interesting things done with split plenum or "breather" channels so at low RPM the carb banks can benefit from one another.
Take care...
Dan
Hotshot
Joined: May 2003
Posts: 11,141
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From: south louisiana
The only difference I see between the two is the camera angle. If you're going to post pics to compare the two make sure you set the camera at the same angle for both. You used a lower angle with the E7 head, hence the illusion that the Thermactor bump is larger. But all this is really a moot point, if you're going to use either for a performance build, the heads need to be ported and the bump removed.
Hotshot
Joined: May 2003
Posts: 11,141
Likes: 25
From: south louisiana
No, they're still there. I didn't realize this thread was that old till after adding to it. you have to click on the words in the text to see em. Post #14
Last edited by baddad457; Nov 17, 2007 at 06:37 AM.
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