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Where did the Stealth head crack and is it not repairable?

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Hope I don't get banned for this ....

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Holy crap! What's the story on that head?

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I don't remember but when I saw it I right clicked SAVE ... the person that posted it up had more than one that was broken like that. I doubt they were hydro locked, this was a known issue with the early stealths, I hope for the sword swallowers sake that they don't have that issue anymore.

Dom, there is a huge difference between stuff made in Japan and the stuff made in China , Japanese stuff was on par with current china back in the 70's , much better today .

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Ya, my ADD was on kill when I posted that and I forgot that Japan in many ways has it together however China and Taiwan................

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I don't understand the question here???...

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Not to tough to figure out.....

Edelbrock heads=$1750, plus need to be checked for guide clearance and valve job

Stealth heads=$1000, plus need to be checked for guide clearance, valve job, and pushrod clearance

CNC Stealth=$2000, Ready to go, checked by Modern Cyl. Head

CNC Stealth is a no-brainer

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What I meant by "I don't understand the question" is that they are the same head (performance wise) when prepped the same...so it boils down to if you want to support an American made product or a Chinese knock-off....sure, it's "a no brainer" if you don't care about jobs in this country...

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I agree that Edelbrock would be a better choice. They also flow better ootb than a stealth. I think the edelbrock ootb will flow about 285 where as the stealth flow 265 iirc. Have you considered the indy ez?

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Go edelbrock they will produce 40 more HP OOTB better than Stealth. I have hand ported both and the edelbrocks are much nicer fit and finish on and off the motor. Lets say the stealths are well chinessee. seats hang down into combustion chamber or are not flushed with it better than a 45 year old iron head but bot near as nice as an edelbrock!

The confusion comes when CNC ported Stealths are close to the Edelbrocks (within 10 CFM) but OOTB many get the 265/267 number for the Steaths and 285/287 for the OOTB Edelbrocks. My local guy got 257 for the stealth and 285 for eddies on his flow bench. A little hand porting on either can go a long way.

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on a side note about rpm heads, does anyone know how fast these heads could push a b-body?

Also, if the heads were fully ported what is the ideal cubic inch for these heads? In other words what works well, and what is too big?

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Not a B body but a Friends duster has gone 8.80's-8.90's with Edelbrock heads, solid lifter cam, and a tunnle-ram. App 500 ci.

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what dos this car weigth

what carbs on the tunnelram

what solid cam



very nice combo

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on a side note about rpm heads, does anyone know how fast these heads could push a b-body?

Also, if the heads were fully ported what is the ideal cubic inch for these heads? In other words what works well, and what is too big?

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Not a B body but a Friends duster has gone 8.80's-8.90's with Edelbrock heads, solid lifter cam, and a tunnle-ram. App 500 ci.

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what dos this car weigth

what carbs on the tunnelram

what solid cam



very nice combo

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I won't post a weight or cam specs because I'm not sure. Its a Indy tunnel ram with (2) 750's. Now for the good part. He ported the heads himself (first attempt) under the guidance of Tom Hemphile. Not bad for a 23-24 year old. His Fathers 69 charger has gone 8.60's with B1-BS heads and an old weiand tunnel ram.

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Yea, but the Duster has a B1 sticker on the scoop...!!!!!

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Hey Todd SHHHHHHH. That's worth 50hp. For each carburetor.

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I don't understand the question here???...

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Not to tough to figure out.....

Edelbrock heads=$1750, plus need to be checked for guide clearance and valve job

Stealth heads=$1000, plus need to be checked for guide clearance, valve job, and pushrod clearance

CNC Stealth=$2000, Ready to go, checked by Modern Cyl. Head

CNC Stealth is a no-brainer

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What I meant by "I don't understand the question" is that they are the same head (performance wise) when prepped the same...so it boils down to if you want to support an American made product or a Chinese knock-off....sure, it's "a no brainer" if you're the stereotypical Joe Dirt Mopar guy that's spending money on a motor he really can't afford when he should be buying clothes for his kids AND doesn't care about jobs in this country...

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And the E-brock is pretty much a Mopar knock-off right down to the stone age combustion chamber albeit with better flowing ports.

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What I don't understand is why Edelbrock made them with those chambers when they already have patterns for fast burn chambers proven to make a bunch more power with 10 deg less timing on other flavors of engines.

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There's no queation that the Edelbrock head combustion chamber is a copy of the 915 chamber, that's a 1967. Are the ports close? I don't know, but Steve Dulcich found that the 915 head had good swirl. That, added to the ability to build squish makes the 915 pretty desirable.

IMHO the 1968 chamber was a step in the wrong direction. I believe one of the problems was the MOPAR engineer's acceptance of low precision in the manufacturing process. Even though they had the area in place, the top of the piston was too far away from the head squish area. So, there was a large amount of cool, unburned hydrocarbons that never got taken care of. Remember that the squish area needs to be 0.040" or less, but the OEM design left at least 0.080" on most of the big blocks. The open chamber killed their "problem" which was caused by leaving the piston top too far down at TDC.

If you make sure to get the piston and the head squish area to be within 0.040" of each other, though, I think emissions will be better and depend more on camshaft and carb setup.

it is too bad that Edelbrock didn't put a better chamber in those heads, as was said before they had several examples of better chambers in production! Perhaps they were concerned about high compression dome fitment. Using the 915 chamber made sure that high compression domed pistons would fit.

R.

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I bet you will find .080 was on the highest of compression 440. By 1973 it was more like .170 . Yes, one hundred seventy lol. And if you do the math, the true compression of a smog 440 is 7.7-7.8 to 1.