Re: have 906 heads right now should I go to stealth hea
[Re: Stanton]
#59697
05/20/08 03:25 PM
05/20/08 03:25 PM
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Joined: Jan 2003
Posts: 75,274 A gulag near you.
JohnRR
I Win
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I Win
Joined: Jan 2003
Posts: 75,274
A gulag near you.
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Quote:
I can't believe some of these responses. It amazes me that these guys are actually driving cars and not still running around in horse and buggys!
Use the 906's to anchor your dingy or something like that - or sell them to one of these die-hard iron fans. The simple fact is you'll end up spending more money than the cost of the Stealth heads to get a 906 to perform to the same level as an "out of the box" Stealth (just read the specs !!) and then you'll be left with very little room for future improvement. The Stealth, on the other hand, has all the good stuff right out of the box AND has a ton of material left for future improvement. The weight savings was already mentioned. Consider resale value as well. "Brand new" should also be worth something!
As for asking so-and-so about this and so-and-so about that, HELL, call up 440Source and get it right from the horse's mouth !!!!!
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Re: have 906 heads right now should I go to stealth heads?
[Re: 79machocharger]
#59698
05/20/08 03:59 PM
05/20/08 03:59 PM
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Joined: Feb 2003
Posts: 1,142 Tucson, AZ
cruzin
super stock
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super stock
Joined: Feb 2003
Posts: 1,142
Tucson, AZ
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79machocharger,
Perhaps the following will be useful in your decision. I helped my buddy change the heads (906 w/larger valves) on his 3900 lbs., 1968 440 RT recently. His motor consist of 10:1, Lunati Voodoo #60302 262-268 cam, Performer RPM intake, BG 750 Mighty Demon, headers, 727 w/3000 stall, 3:55 SG.
The 906s that were removed were in good shape and had upgraded springs. Heads were rebuilt a little more than 1 year ago. On went the Stealth heads using prior rocker assembly (roller 1.5). Stealth heads were untouched and simply bolted on. Timing is 36 total.
In March the car went 13.9. May 2, car ran 13.55. I believe the mph was up 3 or 4 mph with the new heads. Car is more responsive with the new heads. Weight dropped poundage off the front end too.
Hope this helps.
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Re: have 906 heads right now should I go to stealth heads?
[Re: cruzin]
#59699
05/20/08 04:12 PM
05/20/08 04:12 PM
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Joined: Oct 2004
Posts: 5,443 ME
79machocharger
OP
master
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OP
master
Joined: Oct 2004
Posts: 5,443
ME
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Thanks for all the info guys, I decided to go with the stealth heads. I'm building a pretty healthy 440 and wanted somthing that would would work real nice with it and it sounds like these will be the better bet for me between the two .
Last edited by 79machocharger; 05/20/08 04:30 PM.
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Re: have 906 heads right now should I go to stealth heads?
[Re: 79machocharger]
#59700
05/20/08 04:48 PM
05/20/08 04:48 PM
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Joined: Feb 2003
Posts: 21,318 Manitoba, Canada
DaytonaTurbo
Too Many Posts
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Too Many Posts
Joined: Feb 2003
Posts: 21,318
Manitoba, Canada
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I went with the stealth heads for my build as well. I'm still not sure if it was the right choice, but it's done. I didn't want to have to deal with spending the $ shipping a set of spare stock heads out to a trusted head porter, having him port and rebuild the heads and shipping them back. Probably would have spent the same in the end either way. I'm kind of wondering whether I should have just saved my money and went with a set of e-victors instead, but they may have been a little overkill. At the end of the day, there's more than one way to skin a cat so do it however you want. I agree, not everyone needs aluminum heads, but these days 500hp is as impressive as 400hp was 10 years ago, so everyone wants to keep up with the times. And for those #'s, a set of unported stock valve heads won't do it.
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Re: have 906 heads right now should I go to stealth heads?
[Re: cruzin]
#59701
05/20/08 07:00 PM
05/20/08 07:00 PM
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Joined: Jan 2003
Posts: 24,562 Brookeville, Md
Mr.Yuck
Not enough dumb comments...yet
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Not enough dumb comments...yet
Joined: Jan 2003
Posts: 24,562
Brookeville, Md
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Quote:
79machocharger,
Perhaps the following will be useful in your decision. I helped my buddy change the heads (906 w/larger valves) on his 3900 lbs., 1968 440 RT recently. His motor consist of 10:1, Lunati Voodoo #60302 262-268 cam, Performer RPM intake, BG 750 Mighty Demon, headers, 727 w/3000 stall, 3:55 SG.
The 906s that were removed were in good shape and had upgraded springs. Heads were rebuilt a little more than 1 year ago. On went the Stealth heads using prior rocker assembly (roller 1.5). Stealth heads were untouched and simply bolted on. Timing is 36 total.
In March the car went 13.9. May 2, car ran 13.55. I believe the mph was up 3 or 4 mph with the new heads. Car is more responsive with the new heads. Weight dropped poundage off the front end too.
Hope this helps.
main problem w/ that set-up is the 3.55's You'd think it'd run high 12's low 13's w/o the high end heads. Probably be better off with a different cam and lower stall. My bone stock 67 GTX (except for summit 488 cam) w/ 3.55's on radials thru logs went 13.86-13.90
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Re: have 906 heads right now should I go to stealth heads?
[Re: Stanton]
#59702
05/20/08 07:11 PM
05/20/08 07:11 PM
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Anonymous
Unregistered
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Anonymous
Unregistered
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Quote:
I can't believe some of these responses. It amazes me that these guys are actually driving cars and not still running around in horse and buggys!
Use the 906's to anchor your dingy or something like that - or sell them to one of these die-hard iron fans. The simple fact is you'll end up spending more money than the cost of the Stealth heads to get a 906 to perform to the same level as an "out of the box" Stealth (just read the specs !!) and then you'll be left with very little room for future improvement. The Stealth, on the other hand, has all the good stuff right out of the box AND has a ton of material left for future improvement. The weight savings was already mentioned. Consider resale value as well. "Brand new" should also be worth something!
As for asking so-and-so about this and so-and-so about that, HELL, call up 440Source and get it right from the horse's mouth !!!!!
yup.. nothin' like some good ole iron heads opening a can of whoop butt against some eddies, stealths, or whatever. BELIEVE me my friend.. 90% of the people here get aluminum heads just to be cool.. power is secondary.
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Re: have 906 heads right now should I go to stealth heads?
#59703
05/20/08 07:19 PM
05/20/08 07:19 PM
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Joined: Jun 2006
Posts: 5,173 CT
GTX MATT
master
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master
Joined: Jun 2006
Posts: 5,173
CT
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Quote:
Quote:
I can't believe some of these responses. It amazes me that these guys are actually driving cars and not still running around in horse and buggys!
Use the 906's to anchor your dingy or something like that - or sell them to one of these die-hard iron fans. The simple fact is you'll end up spending more money than the cost of the Stealth heads to get a 906 to perform to the same level as an "out of the box" Stealth (just read the specs !!) and then you'll be left with very little room for future improvement. The Stealth, on the other hand, has all the good stuff right out of the box AND has a ton of material left for future improvement. The weight savings was already mentioned. Consider resale value as well. "Brand new" should also be worth something!
As for asking so-and-so about this and so-and-so about that, HELL, call up 440Source and get it right from the horse's mouth !!!!!
yup.. nothin' like some good ole iron heads opening a can of whoop butt against some eddies, stealths, or whatever. BELIEVE me my friend.. 90% of the people here get aluminum heads just to be cool.. power is secondary.
Lots of people running Eddie RPMs on a 450 hp 440 with a broom stick for a cam, whats the point? Lots of guys turning 500 hp with irons. The aluminums are superior but it seems like alot of people that have them dont even need them, the guys whos combo itd really be good for have the Irons because they dont have the cash. I just hate when I go to a car show and see a 440 with aluminum heads and ask about the cam and if the motor is dynoed or not, and its a very mild combo. I get all excited for a 550 hp mill and am saddened. For what its worth a guy with an IRON headed 383 at my local cruise I chatted with maybe two weeks ago said his 383 with 906s and the regular street/strip specs dynoed at 460 hp and almost 500 ft lbs of torque. Hes gonna bring the cam card and dyno sheet next time he comes because he didnt remember the specs on the cam.
I tend to wonder if the irons are really better suited on a 383 than the aluminum heads in most applcations. Probably not, but I still wonder.
Now I need to pin those needles, got to feel that heat Hear my motor screamin while I'm tearin up the street
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Re: have 906 heads right now should I go to stealth heads?
[Re: 79machocharger]
#59704
05/20/08 08:19 PM
05/20/08 08:19 PM
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Joined: Jan 2003
Posts: 5,044 At a gas station near you
badblack68
master
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master
Joined: Jan 2003
Posts: 5,044
At a gas station near you
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Quote:
Thanks for all the info guys, I decided to go with the stealth heads. I'm building a pretty healthy 440 and wanted somthing that would would work real nice with it and it sounds like these will be the better bet for me between the two .
Just a suggestion, take 10 minutes and call Bob at Outrageously Vintage BEFORE you write the check on the stealth heads. He`s a great guy and has been racing Mopars all his adult life. I`m sure you know him because Reed asked me how I got Bob to build me an engine.
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Re: have 906 heads right now should I go to stealth heads?
[Re: badblack68]
#59705
05/20/08 08:26 PM
05/20/08 08:26 PM
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Joined: Nov 2007
Posts: 21,909 Kirkland, Washington
Pacnorthcuda
Too Many Posts
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Too Many Posts
Joined: Nov 2007
Posts: 21,909
Kirkland, Washington
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Quote:
Quote:
Thanks for all the info guys, I decided to go with the stealth heads. I'm building a pretty healthy 440 and wanted somthing that would would work real nice with it and it sounds like these will be the better bet for me between the two .
Just a suggestion, take 10 minutes and call Bob at Outrageously Vintage BEFORE you write the check on the stealth heads. He`s a great guy and has been racing Mopars all his adult life. I`m sure you know him because Reed asked me how I got Bob to build me an engine.
And keep in mind you're taking to a guy who's got a significant portion of his business in refurbishing iron heads. Must be ruff these days with the other choices out there!
Hey, I run ported 906's on my car, I will use them till something happens, but I will NOT put any money into them. It will be the perfect opportunity to UPGRADE to AL heads!
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Re: have 906 heads right now should I go to stealth heads?
[Re: Stanton]
#59708
05/22/08 10:39 PM
05/22/08 10:39 PM
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Anonymous
Unregistered
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Anonymous
Unregistered
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sooo you sold a pair of 906's for $475? who are these class racers. i got 2 pairs i'll let go for $400/ pair. tanked, big valve, etc.
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