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440 Stealth Heads vs Eddy E-Street

m79ded

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Hi

I was looking into getting a pair of heads for my 440 street engine.
Which of the 2 would be better?
Has anybody used the E-Street heads? any good?

It's a 9.5 comp engine with a 228 @50 cam

Thanks
 
There has been some discussion of the E-Street Heads, but I don't think anyone here has tried them yet...
 
The 84cc E-Street is out and looks just like the RPM head, even the same price. The 75cc E-Street is not out yet but should be getting closer. It's combustion chamber looks like the Victor head on the one that I saw at Mopars At The Strip. We have no flow numbers for the 75cc head as it will have it's own dedicated casting, that differs from the RPM or 84cc E-Street.
 
I have purchased 2 sets of the 440 source heads and you must replace the crap retainers and locks and most people that have had them recommend changing the springs as well. Also you may have to clearance the pushrods.

By the time you do all of this, you will have more invested in them than if you would have bought the Edelbrocks in the first place, and the Edelbrocks have helicoiled bolt holes and angled plugs. If you need the straight plug for some reason, I would buy the Mopar/Edelbrock heads.

I would much rather by a product from a US company also.
 
I checked Summit this weekend and they have the 75cc head listed for $979.00 /pair
I don't know if it's a typo but I will find out.
Seems like a great price for a set, but what's the diff with the 84cc that are $500.00 more.doesn't make sense.
Too bad Mopar is so expensive in their 452 aluminum head because that looked pretty good as well.
 
I have purchased 2 sets of the 440 source heads and you must replace the crap retainers and locks and most people that have had them recommend changing the springs as well. Also you may have to clearance the pushrods.

By the time you do all of this, you will have more invested in them than if you would have bought the Edelbrocks in the first place, and the Edelbrocks have helicoiled bolt holes and angled plugs. If you need the straight plug for some reason, I would buy the Mopar/Edelbrock heads.

I would much rather by a product from a US company also.

You are right and I agree 100%, the only real advantage that 440 source head has is that they can go undercover better than the eddy's
:headbang:
 
I checked Summit this weekend and they have the 75cc head listed for $979.00 /pair
I don't know if it's a typo but I will find out.
Seems like a great price for a set, but what's the diff with the 84cc that are $500.00 more.doesn't make sense.
Too bad Mopar is so expensive in their 452 aluminum head because that looked pretty good as well.

I agree about the Aluminum 452's. Really wanted some and looked into them before purchasing the Stealth heads. The Stealth heads are a value if you consider how much it would cost to machine and ready a set of iron heads for a build. I based my decision on that factor. I did upgrade the valve train to comp cam components and still have less than $1200 in the set. My build is not an extreme power hungry deal just a stock appearing 440/512 all painted turquiose with no shiny stuff. A sneak up on you and smoke your butt build.
 
Hi

I was looking into getting a pair of heads for my 440 street engine.
Which of the 2 would be better?
Has anybody used the E-Street heads? any good?

It's a 9.5 comp engine with a 228 @50 cam

Thanks

I think 9.5:1 compression is low for an aluminum head build. Bump it up a point and gain a little more horsepower in the process. The camshaft you chose is not much smaller than mine at .050. My hydraulic roller cam specs: advertised 280-286, @ .050 231-236, with lift of 622 and 625 w/1.6 crane rockers. The Stealth heads flow numbers show good around 600 lift. My compression will be around 11:1 with pump gas.
 
I have purchased 2 sets of the 440 source heads and you must replace the crap retainers and locks and most people that have had them recommend changing the springs as well. Also you may have to clearance the pushrods.

By the time you do all of this, you will have more invested in them than if you would have bought the Edelbrocks in the first place, and the Edelbrocks have helicoiled bolt holes and angled plugs. If you need the straight plug for some reason, I would buy the Mopar/Edelbrock heads.

I would much rather by a product from a US company also.

Really? Hmm never had to replace anything on mine and they run fine, sure you just didn't piss them off like sending your food back to the cook? lol Seems pre 2011 stealth heads had some casting and assembly issues but seems to be fixed. and for the price they work well. and fit more like stock heads than eddy and have straight spark plug holes. Even thought the aluminum is cast in china they are finished and assembled here in California, If you think Edelbrock gets their raw material for their stuff here think again. Made in USA only means assembled in USA now sucks yes but they all do it now.
 
Really? Hmm never had to replace anything on mine and they run fine, sure you just didn't piss them off like sending your food back to the cook? lol Seems pre 2011 stealth heads had some casting and assembly issues but seems to be fixed. and for the price they work well. and fit more like stock heads than eddy and have straight spark plug holes. Even thought the aluminum is cast in china they are finished and assembled here in California, If you think Edelbrock gets their raw material for their stuff here think again. Made in USA only means assembled in USA now sucks yes but they all do it now.

Totally agree with you. I changed out the valve train components because the camshaft needed it not because I thought it was junk. I feel for the money it is really good bang for the buck. They flow better out of the box than most ported iron heads. the potential is there to make serious power with a stock appearance. That is absolutely awesome in my book especially if you are trying to conseal the obvious. The obvious is you just got skull drug by a grocery getter!!!
 
My dad has the 440source heads, but ordered smith bros. pushrods in 5/16 diameter, 10.5.1 compression on a 440 (440source 505 stroker kit). Still building the engine, so hopefully there wont be an issue. Not sure on cam specs, but it's not over .500, so springs, retainers and locks should be just fine.
 
My dad has the 440source heads, but ordered smith bros. pushrods in 5/16 diameter, 10.5.1 compression on a 440 (440source 505 stroker kit). Still building the engine, so hopefully there wont be an issue. Not sure on cam specs, but it's not over .500, so springs, retainers and locks should be just fine.

440Source said that their springs would be OK but I bought the matching springs, locks, and retainers for the cam. You should be fine but the ramp speeds for the hydraulic roller I just did not want to push it. You know what I mean sometimes it is better to have piece of mind on a build, right.
 
My dad has the 440source heads, but ordered smith bros. pushrods in 5/16 diameter, 10.5.1 compression on a 440 (440source 505 stroker kit). Still building the engine, so hopefully there wont be an issue. Not sure on cam specs, but it's not over .500, so springs, retainers and locks should be just fine.

I just ordered my pushrods from Smith Bros. They are 3/8 .120 wall for my hydraulic roller. I cannot wait until I can get my 512 on the dyno and see what she does.
 
I'm on my second set of 440 Source ones also, didn't change a thing on the first set, gonna try this one our of the box, but running a larger hydraulic roller, so I may end up having to change the springs. Just gonna try it and see. I really like em.
 
I'm on my second set of 440 Source ones also, didn't change a thing on the first set, gonna try this one our of the box, but running a larger hydraulic roller, so I may end up having to change the springs. Just gonna try it and see. I really like em.

BuckNeccid,
What size hydraulic roller are gonna run? How large of a motor is it? Just wanting to know because not to many mopar guys with big blocks are running them. What lifters are you going to use? I looked into the Lunati and settled on Comp. I looked at a few different companies and went with Comp on the cam also. The specs on the camshaft are kin of odd: advertised duration 280-286, @ .050 231-236, with 622-625 lift utilizing 1.6 rockers, has 111 lobe separation, and 109 centerline. I think in my 512 this will have a subtle sound and great performance under 6000 rpm.
 
My dads cam is a flat tappet hydraulic, so he should be alright.
 
BuckNeccid,
What size hydraulic roller are gonna run? How large of a motor is it? Just wanting to know because not to many mopar guys with big blocks are running them. What lifters are you going to use? I looked into the Lunati and settled on Comp. I looked at a few different companies and went with Comp on the cam also. The specs on the camshaft are kin of odd: advertised duration 280-286, @ .050 231-236, with 622-625 lift utilizing 1.6 rockers, has 111 lobe separation, and 109 centerline. I think in my 512 this will have a subtle sound and great performance under 6000 rpm.

Using lunati for the hydraulic roller lifters and the cam is .513.530, 270/278, 440 source roller rockers and shafts. Going in a .030 10-1 440 with just the 440 source heads and an old Weiand WCFQ intake. With everything the same in another engine except it was a Lunati flat tappet hydraulic, .533/.552, 242/252) that turned a 13 flat in a 71 GTX. Hoping to get something similar out of this engine because of the benefits of roller over flat tappet.
 
Really? Hmm never had to replace anything on mine and they run fine, sure you just didn't piss them off like sending your food back to the cook? lol Seems pre 2011 stealth heads had some casting and assembly issues but seems to be fixed. and for the price they work well. and fit more like stock heads than eddy and have straight spark plug holes. Even thought the aluminum is cast in china they are finished and assembled here in California, If you think Edelbrock gets their raw material for their stuff here think again. Made in USA only means assembled in USA now sucks yes but they all do it now.

I never sent anything back to them as far as the heads go, I just replaced eveything except the valves and never asked them for squat, because I had already dealt with them on their crap cast water pump housing as you already know and had already learned their customer service is non-existant.

Refusing to give a refund for a new unusable clearly inferior part, even with me eating the shipping both ways is assinine, and never will I deal with them again. Now since the head issues, I will not have any parts with their name on it on any of my vehicles, even if I do agree the heads themselves don't seem to be bad once you replace most of the parts.

Pissing them off has nothing to do with the keepers pulling through the retainers. I was the one that was pissed off. After the fact, I read many accounts of the same thing happening to others, along with other issues like cracking or the chambers being cast off center and causing head gasket issues.

Comparing raw materials to manufacturing standards??? Seriously?

What of their foreign partner's ethics and accountability? Who's research and development is in the 440 Source heads? Everything I read states that the internal and chamber design is just a copied Edelbrock. It would seem pretty easy to make money selling parts cheaply if you just stole someone elses research and development, like when a GoodYear plant in Columbus OH was over-run by 40 plus Chinese people that rushed in and ran amuck like freaks cutting chunks of rubber from tires and running off with them. Hey morons, how about just buying a damn tire. It's a strange mentality and I just feel it is time we try to do better to support our country and the many other countries that do business properly.

For all of you using 440 Source products, I wish you all the best, I have just had enough problems with the products and the jackass attitude from the dork at 440 Source that I can't give good reviews when I have experienced far the opposite.

I have had outstanding service from Summit, Jegs and Mancini Racing and a fair experience with Muscle Motors. I've also dealt with Indy Cylinder Head without any issues.

When someone asks your opinion of something that you have had a direct experience with, you should give it. Mine was bad, some of yours was good, but for damn sure, don't tell me that I'm wrong for having a bad experience, because I damn sure would have rather all my dealings turned out well, but it just doesn't work out that way.
 
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I never sent anything back to them as far as the heads go, I just replaced eveything except the valves and never asked them for squat, because I had already dealt with them on their crap cast water pump housing as you already know and had already learned their customer service is non-existant.

Refusing to give a refund for a new unusable clearly inferior part, even with me eating the shipping both ways is assinine, and never will I deal with them again. Now since the head issues, I will not have any parts with their name on it on any of my vehicles, even if I do agree the heads themselves don't seem to be bad once you replace most of the parts.

Pissing them off has nothing to with the keepers pulling through the retainers. I was the one that was pissed off. After the fact, I read many accounts of the same thing happening to others, along with other issues like cracking or the chambers being cast off center and causing head gasket issues.

Comparing raw materials to manufacturing standards??? Seriously?

What of their foreign partner's ethics and accountability? Who's research and development is in the 440 Source heads? Everything I read states that the internal and chamber design is just a copied Edelbrock. It would seem pretty easy to make money selling parts cheaply if you just stole someone elses research and development, like when a GoodYear plant in Columbus OH was over-run by 40 plus Chinese people that rushed in and ran amuck like freaks cutting chunks of rubber from tires and running off with them. Hey morons, how about just buying a damn tire. It's a strange mentality and I just feel it is time we try to do better to support our country and the many other countries that do business properly.

For all of you using 440 Source products, I wish you all the best, I have just had enough problems with the products and the jackass attitude from the dork at 440 Source that I can't give good reviews when I have experienced far the opposite.

I have had outstanding service from Summit, Jegs and Mancini Racing and a fair experience with Muscle Motors. I've also dealt with Indy Cylinder Head without any issues.

When someone asks your opinion of something that you have had a direct experience with, you should give it. Mine was bad, some of yours was good, but for damn sure, don't tell me that I'm wrong for having a bad experience, because I damn sure would have rather all my dealings turned out well, but it just doesn't work out that way.

:icon_fU:
 
Your ignorance is no surprize, as I recall one of your other posts telling someone that "440 Source stroker kits are all Eagle stuff and Diamond pistons anyway".

Maybe you should try researching something and getting the facts before you spew things out that you must obviously pull out of your a$$.

Fiction will never be your friend, just like your motto's true expence would be your own ER bills. If you want respect give me something to work with, and if you like giving advice, just research it first and give sound information. If you've had good luck with 440 Source, great, share it, but don't think just because you live on this site, that you can dictate it with BS, as fact will always trump fiction.

I think your missing the point of these forums. I would assume most of us are here to share advice, experience and appreciation of each other's vehicles. You have a pretty decent '69 Road Runner, with a lot of potential, that's a good start. I have 18 B-bodies from '67-'72 at this time and I bought my first '70 Road Runner when I was 14.

My next ground up project is this '70 GTX with a 572 Hemi (sonic checked Mopar block) with Indy Legend RA heads, TTI headers with 4" collectors, a Mopar marine 2-4bbl intake and an air cleaner that I made out of 4 different air cleaners to work with the factory air grabber.
 

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