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stealth heads???????
#243207
03/04/09 07:33 PM
03/04/09 07:33 PM
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Joined: Oct 2005
Posts: 508
mt.ephraim , new jersey
jsmopar1072
OP
mopar
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OP
mopar
Joined: Oct 2005
Posts: 508
mt.ephraim , new jersey
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1.out of the box how do they compare to a ported 906 head?
2.can you buy them un assembled?
3.is anyone using them and whats the noticed difference from what you had?
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Re: stealth heads???????
[Re: jsmopar1072]
#243210
03/05/09 12:08 AM
03/05/09 12:08 AM
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Joined: Jan 2003
Posts: 3,616
Riverside, Ca
G_bob
master
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master
Joined: Jan 2003
Posts: 3,616
Riverside, Ca
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Well, not sure about your questions, but I used a set of them on a motor we built for my wife's 64 vert. Mind you, this is meant to be a cruiser, may even put 2.94 or 2.76 gears in it. 413 block bored to 4.25, 3.75 stroke, so the motor is a 426. 9.6:1 cr with ross pistons. Comp xe275hl cam, 231/237 at 50, .525 lift. 440 source heads ported by ou812/IMM. RPM intake with 770 holley street avenger vac sec carb. Made "only" 470hp and 486 tq on the dts dyno. 440source head dyno pull
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Re: stealth heads???????
[Re: rustbucket]
#243212
03/05/09 07:54 AM
03/05/09 07:54 AM
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Joined: Jan 2003
Posts: 21,063
Niles , Ohio
therocks
oh wait.but hey.lets see.oh yeah.
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oh wait.but hey.lets see.oh yeah.
Joined: Jan 2003
Posts: 21,063
Niles , Ohio
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Have them on my 440.It definetly made a difference.I changed the springs locks and retainers.My .588 solid cam and 4 speed dictated it.If I had Eddys I would have had to do the same thing.My machinist said the springs woukd be OK for a Hyd cam and auto.Rocky
Chrysler Firepower
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Re: stealth heads???????
[Re: QWK_ENUF]
#243215
03/05/09 12:16 PM
03/05/09 12:16 PM
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Anonymous
Unregistered
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Anonymous
Unregistered
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Quote:
Quote:
Quote:
You cannot buy them unassembled. If you want to build anything really healthy you are going to have to buy new springs , retainers and locks. I did not want to waste money on parts I would never use.....That is why I did not buy them.
This is the answer you get from the people that don't own a pair and just want to stir up crap. 
Do a search on the heads and you will find hundreds of opinions.
I own a pair of the first that was made.I have beat the snot out of them for 1 season. I gained .2 to .35 in the 1/8th mile over a pair of very good ported 915s.No other changes just the heads.I had to use roller springs so the stock retainers and springs had to be replaced but there was nothing wrong with them.
aren't you being just a little oversensitive? i read his remark as there are other choices out there where heads can be purchased bare. maybe he went that route instead.he didn't make a big deal out of it or say anything derogatory, just expressing his thoughts, as asked.
apparently he wanted to spend his hard earned money differently, that's all.
personally, the way i see it, there are plenty of options out there for any given combo. the Stealth heads are just one option. i wouldn't condemn the guy just because he didn't buy from what is possibly "your" preferred provider.
just for the record, i've built combo's with the stealths, edelbrocks, indy's and so on. many have the same pro's and cons to them but it's still a free country to choose what you feel is right for you and express your opinion about it, isn't it?
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Re: stealth heads???????
[Re: slippery440]
#243216
03/05/09 12:16 PM
03/05/09 12:16 PM
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Joined: Sep 2008
Posts: 2,840
Flint, Michigan
B1Fish540
master
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master
Joined: Sep 2008
Posts: 2,840
Flint, Michigan
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Quote:
Quote:
You cannot buy them unassembled. If you want to build anything really healthy you are going to have to buy new springs , retainers and locks. I did not want to waste money on parts I would never use.....That is why I did not buy them.
This is the answer you get from the people that don't own a pair and just want to stir up crap.
Do a search on the heads and you will find hundreds of opinions.
I own a pair of the first that was made.I have beat the snot out of them for 1 season. I gained .2 to .35 in the 1/8th mile over a pair of very good ported 915s.No other changes just the heads.I had to use roller springs so the stock retainers and springs had to be replaced but there was nothing wrong with them.
I have to disagree. in this case, it was not a  type post..it had useful info and he simply explained why he did'nt choose to buy them..and I think its a good reason, IMHO. 
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Re: stealth heads???????
[Re: B1Fish540]
#243217
03/05/09 01:18 PM
03/05/09 01:18 PM
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Joined: Sep 2005
Posts: 2,442
LOWELL IN
QWK_ENUF
top fuel
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top fuel
Joined: Sep 2005
Posts: 2,442
LOWELL IN
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"You cannot buy them unassembled. If you want to build anything really healthy you are going to have to buy new springs , retainers and locks. I did not want to waste money on parts I would never use.....That is why I did not buy them. " maybe not but if you were building something REALLY healthy would you consider a basic head that is set up for a mild hyd cammed application anyway or move up to a differnt head altogether i thought of the stealth/performer heads but went with the victors since i used my own springs.
WAXER
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Re: stealth heads???????
[Re: @#$%&*!]
#243219
03/05/09 03:41 PM
03/05/09 03:41 PM
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Joined: Sep 2008
Posts: 219
so cal
cmcgee123
enthusiast
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enthusiast
Joined: Sep 2008
Posts: 219
so cal
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i had to change springs retainers and locks on my 3k indy heads.  and i had to change them on my stealth heads  most of the time when you are building something you will end up with a little extra. the stealth heads look great and perform fantastic for the cost  are there better heads, absolutely. is there a better head for the money NO 
nitrous is like a really hot chick with an std you want to hit it but youre affraid of the outcome.
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Re: stealth heads???????
#243220
03/05/09 08:14 PM
03/05/09 08:14 PM
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Joined: Jan 2003
Posts: 1,142
Central New York
slippery440
Crybaby440
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Crybaby440
Joined: Jan 2003
Posts: 1,142
Central New York
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DRAM I read the if you want to build anything healthy you would need to change the springs and retainers and locks. Well DAH  that is a no brainer and aplys to all the out of box heads.I am not talking about the high dollar B1s or Indys.I wonder what Rustbucket bought instead?He didn't say. I will put it to you this way .If I had a prety heathy motor that had a cam that had a lift of lets say .540 I would take the stealth heads out of the box and bolt them on.I would put alot of machine shops out of buiness. Everyone needs to stop and think before jumping a idea. It should be a moparts rule that if you post on any product either bad or good you first must own that product and used it personly.This would stop all the mopar gods that sit in there own little world and make judgement calls on products they have never used.BTW That was not pointed at you Dram.I see that you have used them. You said a mouth full when you said they ALL have pro's and con's.
If the MODS did their job I would not be hitting the notify MOD button. LOL
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Re: stealth heads???????
[Re: slippery440]
#243221
03/05/09 08:38 PM
03/05/09 08:38 PM
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Anonymous
Unregistered
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Anonymous
Unregistered
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Quote:
DRAM I read the if you want to build anything healthy you would need to change the springs and retainers and locks. Well DAH that is a no brainer and aplys to all the out of box heads.I am not talking about the high dollar B1s or Indys.I wonder what Rustbucket bought instead?He didn't say.
I will put it to you this way .If I had a prety heathy motor that had a cam that had a lift of lets say .540 I would take the stealth heads out of the box and bolt them on.I would put alot of machine shops out of buiness.
Everyone needs to stop and think before jumping a idea.
It should be a moparts rule that if you post on any product either bad or good you first must own that product and used it personly.This would stop all the mopar gods that sit in there own little world and make judgement calls on products they have never used.BTW That was not pointed at you Dram.I see that you have used them. You said a mouth full when you said they ALL have pro's and con's.
keep in mind that the bold print above was not a quote from me.
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Re: stealth heads???????
[Re: DaKuda]
#243225
03/06/09 12:30 AM
03/06/09 12:30 AM
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Joined: Jul 2003
Posts: 2,637
Western Michigan
68Fastback
master
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master
Joined: Jul 2003
Posts: 2,637
Western Michigan
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Quote:
There is a guy here that had a BRAND NEW set crack and break off an entire cylinder. This is no joke. They did send him a new head and told him due to the way the cast/machine these heads to only torque them to 50 ft/lbs. This is a true story. I'll try and get pictures of the one that broke, a complete, cylinder off.
How would the head gasket seal at that torque setting ? You have a link to this story, was it posted on here.
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Re: stealth heads???????
[Re: DaKuda]
#243226
03/06/09 02:47 AM
03/06/09 02:47 AM
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Joined: Jan 2005
Posts: 1,260
Las Vegas NV
moparmanjames
pro stock
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pro stock
Joined: Jan 2005
Posts: 1,260
Las Vegas NV
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Quote:
There is a guy here that had a BRAND NEW set crack and break off an entire cylinder. This is no joke. They did send him a new head and told him due to the way the cast/machine these heads to only torque them to 50 ft/lbs. This is a true story. I'll try and get pictures of the one that broke, a complete, cylinder off.
Wha??? Ok I might be wrong but I want to be the first to call BS! 
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IHTHs Call 440source for question # 2 
