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Re: Stealth Head question
[Re: hemigod426]
#1172978
02/06/12 05:52 PM
02/06/12 05:52 PM
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Joined: Oct 2003
Posts: 3,698
NE Oklahoma
Von
master
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master
Joined: Oct 2003
Posts: 3,698
NE Oklahoma
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Quote:
heres stealth heads
Those are race heads...no heat crossover...race all of the way...... 
72 RR, Pump gas 440, 452s, 3800 lbs, Corked, ET Radials,. 11.33@117.72.
Same car, bone stock 346s, 9.5 comp, baby solid. 12.24@110.
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Re: Stealth Head question
[Re: hemigod426]
#1172979
02/06/12 05:57 PM
02/06/12 05:57 PM
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Joined: Oct 2003
Posts: 3,698
NE Oklahoma
Von
master
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master
Joined: Oct 2003
Posts: 3,698
NE Oklahoma
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Quote:
boy they look so stock lol.
From that pic they look no more racier than Stealths...  ...without a heat crossover.... 
Im not a stealth hater either, they have their place...but they arent the BEST non race type head.....
72 RR, Pump gas 440, 452s, 3800 lbs, Corked, ET Radials,. 11.33@117.72.
Same car, bone stock 346s, 9.5 comp, baby solid. 12.24@110.
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Re: Stealth Head question
[Re: jyrki]
#1172980
02/06/12 06:12 PM
02/06/12 06:12 PM
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Joined: Feb 2007
Posts: 2,315
MOPAR HEADQUARTERS IN ALDEN NY
hemigod426
top fuel
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top fuel
Joined: Feb 2007
Posts: 2,315
MOPAR HEADQUARTERS IN ALDEN NY
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Quote:
I don't hate Stealth heads. I have used close to ten sets of them and for the price they are hard to beat. But to tell that they are the best stock OTB replacement heads is false; they are not. Although not perfect, the Edelbrocks and the mopar performance heads are better material and better quality overall.
Here is a "383" I built some two years ago with Stealth heads, mild hydraulic cam and 460+ hp
http://4.bp.blogspot.com/_1utFs2uOvMs/SbKhXe4uBbI/AAAAAAAACjc/SrYXJgq4JRo/s1600-h/DSC08667.JPG
nice work, but still what better stock looking head set, can you buy for 1k with 2.14/1.81 11/32 stainless valves,seats,and cast in alum and flow 285 otb, the only other head is mopar performance and about 2x the cost,yes made better but dont flow the same. and eddy heads are also made better i know that but they dont look stock at all, that would be like comparing indy SRs to stealth heads.
MOPAR OR NO CAR
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Re: Stealth Head question
[Re: 00snake530]
#1172982
02/06/12 06:59 PM
02/06/12 06:59 PM
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Joined: Jan 2003
Posts: 75,043
U.S.S.A.
JohnRR
I Win
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I Win
Joined: Jan 2003
Posts: 75,043
U.S.S.A.
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rev 
what evidence do you have that those heads come with REV valves?
a sworn and notarized statement
 can't even get flow sheet numbers for them ....
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Re: Stealth Head question
[Re: hemigod426]
#1172983
02/06/12 07:39 PM
02/06/12 07:39 PM
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Joined: Oct 2003
Posts: 3,698
NE Oklahoma
Von
master
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master
Joined: Oct 2003
Posts: 3,698
NE Oklahoma
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Quote:
flow 285 otb,
72 RR, Pump gas 440, 452s, 3800 lbs, Corked, ET Radials,. 11.33@117.72.
Same car, bone stock 346s, 9.5 comp, baby solid. 12.24@110.
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Re: Stealth Head question
[Re: Von]
#1172984
02/06/12 08:16 PM
02/06/12 08:16 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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Quote:
Quote:
flow 285 otb,
FWIW, in the stealth vs eddy rpm flow test that that dwayne (fast68plymouth) did when the stealths first came out, neither the stealth nor eddy heads came near touching 285cfm OOTB. In that test, at .300 lift and below, the stealths had a slight few cfm edge over the eddy heads, after that the eddys had about a 10cfm lead, peaking at 276cfm at .600 lift. From what I'm told, a clean up of the bowl to valve seat transition on the steath heads really helps bring them up to par with the eddy heads.
But hey, everyone's flow bench is different. Some seem to put out some really 'happy' numbers! 
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Re: Stealth Head question
[Re: DaytonaTurbo]
#1172986
02/06/12 08:32 PM
02/06/12 08:32 PM
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Joined: Feb 2005
Posts: 20,184
PA.
pittsburghracer
"Little"John
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"Little"John
Joined: Feb 2005
Posts: 20,184
PA.
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Quote:
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Quote:
flow 285 otb,
FWIW, in the stealth vs eddy rpm flow test that that dwayne (fast68plymouth) did when the stealths first came out, neither the stealth nor eddy heads came near touching 285cfm OOTB. In that test, at .300 lift and below, the stealths had a slight few cfm edge over the eddy heads, after that the eddys had about a 10cfm lead, peaking at 276cfm at .600 lift. From what I'm told, a clean up of the bowl to valve seat transition on the steath heads really helps bring them up to par with the eddy heads.
But hey, everyone's flow bench is different. Some seem to put out some really 'happy' numbers!
I have had 4 different 440source heads on my flow bench and the best flowing port was 267 cfm. It takes about 1-2 minutes to check the calibration on my bench so I check it every time I start porting a set of heads. When I hear these guys saying they flow 290 out of the box I cringe. 
1970 Duster
Edelbrock headed 408
5.984@112.52
422 Indy headed small block
5.982@112.56 mph
9.42@138.27
Livin and lovin life one day at a time
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Re: Stealth Head question
[Re: DaytonaTurbo]
#1172987
02/06/12 08:44 PM
02/06/12 08:44 PM
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Joined: Feb 2007
Posts: 2,315
MOPAR HEADQUARTERS IN ALDEN NY
hemigod426
top fuel
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top fuel
Joined: Feb 2007
Posts: 2,315
MOPAR HEADQUARTERS IN ALDEN NY
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Quote:
Quote:
Quote:
flow 285 otb,
FWIW, in the stealth vs eddy rpm flow test that that dwayne (fast68plymouth) did when the stealths first came out, neither the stealth nor eddy heads came near touching 285cfm OOTB. In that test, at .300 lift and below, the stealths had a slight few cfm edge over the eddy heads, after that the eddys had about a 10cfm lead, peaking at 276cfm at .600 lift. From what I'm told, a clean up of the bowl to valve seat transition on the steath heads really helps bring them up to par with the eddy heads.
But hey, everyone's flow bench is different. Some seem to put out some really 'happy' numbers!
you can also pick up those #s by doing nice unshrouding of valves with no other work and remill to get the same size chamber.but scrap 452 iron heads must be better...with ports bone stock, little bowl cutting/blending and 5 angle valve job #s get better with stealth heads.and full ported will flow 300-320 intake at useable lift of 600,does this not prove its a great stock looking replacement head?
Last edited by hemigod426; 02/06/12 08:54 PM.
MOPAR OR NO CAR
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Re: Stealth Head question
[Re: DaytonaTurbo]
#1172989
02/06/12 09:33 PM
02/06/12 09:33 PM
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Joined: Nov 2004
Posts: 3,544
Syracuse,NY
CompWedgeEngines
master
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master
Joined: Nov 2004
Posts: 3,544
Syracuse,NY
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That early set of heads that Dwyane did were a set I got from Brandon to do some " testing" on and give him some fedback at the time. They did not equally flow with Edelbrocks out of the box. Guys, this isnt Earth shattering news here. ANY head of this level, can be improved upon with some work. I think overall, the Ebrocks are a touch better witht he valve jobs, guide sizing and such, but I also believe the Stealths have gotten better. I'll have a few more sets here shortly of the " newer" breed, and will find out first hand. Whatever you do, dont ever even consider wasting your time flowing from one bench to another. Unless the heads were flowed by the same knowledgable operator, then forget it. Too many reasons that cant be compared. Bottom line, its your money, spend it the way you want. Take them to a professional and you will see results with bowl work, valve job and chamber work. Guys like Dwyane have spent a fair portion of their life studying what works and what doesnt, as have I. Make your decisions accordingly. The Stealths have probably made it reasonable for many people to updgrade to a newer head, rather than having to re-build old cast iron. They have their place, Ebrocks have theirs, and then you get into true race quality offerings, which shouldnt be combined in the same category. Based on some very current information I just got yesterday, even Edelbrock doesnt consider the RPM series of head a race oriented piece. ( I cant publicly explain why that came up with them)and I dont blame them. We MAKE them a race piece by doing all the porting work and so forth, but they were never ever intended to be a race piece. Being the mad scientists we are, we automatically make them that..
RIP Monte Smith
Your work is a reflection of yourself, autograph it with quality.
WD for Diamond Pistons,Sidewinder cylinder heads, Wiseco, K1 rods and cranks,BAM lifters, Morel lifters, Molnar Technologies, Harland Sharp, Pro Gear, Cometic, King Engine Bearings and many others.
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Re: Stealth Head question
[Re: hemigod426]
#1172990
02/06/12 09:45 PM
02/06/12 09:45 PM
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Joined: Oct 2003
Posts: 3,698
NE Oklahoma
Von
master
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master
Joined: Oct 2003
Posts: 3,698
NE Oklahoma
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Quote:
does this not prove its a great stock looking replacement head?
Have you ever been in a pissing contest with a skunk?? LOL. 
72 RR, Pump gas 440, 452s, 3800 lbs, Corked, ET Radials,. 11.33@117.72.
Same car, bone stock 346s, 9.5 comp, baby solid. 12.24@110.
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Re: Stealth Head question
[Re: Von]
#1172992
02/07/12 02:20 AM
02/07/12 02:20 AM
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Joined: Jan 2003
Posts: 75,043
U.S.S.A.
JohnRR
I Win
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I Win
Joined: Jan 2003
Posts: 75,043
U.S.S.A.
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Quote:
Quote:
does this not prove its a great stock looking replacement head?
Have you ever been in a pissing contest with a skunk?? LOL.
I'm going to have to say you both have been .
Von , you'll never change the mind of a source sword swallower
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