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Stealth Heads --- Rocker Arms #1192866
03/07/12 01:28 PM
03/07/12 01:28 PM
Joined: Jan 2007
Posts: 780
Woodinville, WA
Viol8r Offline OP
super stock
Viol8r  Offline OP
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Joined: Jan 2007
Posts: 780
Woodinville, WA
This is for all of you that have installed the 440 source Stealth heads sucessfully. I would like to know what adjustable rockers arms you been able to make work with the casting. I currently run Crane Gold 1.5 adjustables, but the intake pushrod is touching the intake runner. It's like they drilled the hole through the head at the wrong angle.

Please tell me I do not have to take this thing apart to clearance them!!?


1968 Pro-Touring Dodge Charger
*2011 Optima Ultimate Street Car Challenge Invitee
http://www.popularhotrodding.com/features/1203phr_1968_dodge_charger/index.html
Re: Stealth Heads --- Rocker Arms [Re: Viol8r] #1192867
03/07/12 01:30 PM
03/07/12 01:30 PM
Joined: Feb 2003
Posts: 3,691
MO
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cdp Offline
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My understanding is that most all the Stealth heads need clearance thru the pushrod hole.

Re: Stealth Heads --- Rocker Arms [Re: Viol8r] #1192868
03/07/12 01:40 PM
03/07/12 01:40 PM
Joined: May 2011
Posts: 340
Alaska
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73rrak Offline
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Posts: 340
Alaska
Mine needed clearanced. I used the 440 source roller rockers and shafts.

Re: Stealth Heads --- Rocker Arms [Re: 73rrak] #1192869
03/07/12 02:34 PM
03/07/12 02:34 PM
Joined: Mar 2010
Posts: 1,880
Out in Left Field, NY
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bobs66440 Offline
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Out in Left Field, NY
They said they may need clearancing with 3/8 rods when I bought mine. They said to just get it so it doesn't touch. No extra clearance necessary.

I'm using 5/16 rods with stock rockers and I don't seem to have a clearance issue.

Re: Stealth Heads --- Rocker Arms [Re: bobs66440] #1192870
03/07/12 02:54 PM
03/07/12 02:54 PM
Joined: Jan 2007
Posts: 780
Woodinville, WA
Viol8r Offline OP
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Viol8r  Offline OP
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Joined: Jan 2007
Posts: 780
Woodinville, WA
At this point I am going to go ahead and order Smith Bros. hardened tempered 5/16 ball and cup pushrods. My open spring pressure is only 350lbs., so its worth it to me to not have to tear the thing down and have the heads clearanced.

I called 440source and they said I should have clearanced them when it was put together. I understand that completely, I am just confused as to why they would build them knowing 3/8 rods don't clear.


1968 Pro-Touring Dodge Charger
*2011 Optima Ultimate Street Car Challenge Invitee
http://www.popularhotrodding.com/features/1203phr_1968_dodge_charger/index.html
Re: Stealth Heads --- Rocker Arms [Re: Viol8r] #1192871
03/07/12 03:10 PM
03/07/12 03:10 PM
Joined: Mar 2010
Posts: 1,880
Out in Left Field, NY
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bobs66440 Offline
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Out in Left Field, NY
Quote:

At this point I am going to go ahead and order Smith Bros. hardened tempered 5/16 ball and cup pushrods. My open spring pressure is only 350lbs., so its worth it to me to not have to tear the thing down and have the heads clearanced.

I called 440source and they said I should have clearanced them when it was put together. I understand that completely, I am just confused as to why they would build them knowing 3/8 rods don't clear.


I did exactly the same thing except mine are ball/ball. But I agree, they shouldn't need to be clearanced. They should just do it while they are machining them.

With the stock rocker arms it's a little more difficult to tell if there will be an issue because the arms are free to move side to side 1/4" or so. I bolted (mocked) everything together and turned it over a few times to see if they would find a happy place, but they just stayed wherever I placed them, but it seemed to want to stay away from the head if I started it there. I may just clearance them a little just in case.

Re: Stealth Heads --- Rocker Arms [Re: bobs66440] #1192872
03/07/12 03:36 PM
03/07/12 03:36 PM
Joined: Jun 2006
Posts: 5,155
CT
GTX MATT Offline
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What is the preferred method to clearance them?


Now I need to pin those needles, got to feel that heat
Hear my motor screamin while I'm tearin up the street
Re: Stealth Heads --- Rocker Arms [Re: GTX MATT] #1192873
03/07/12 03:58 PM
03/07/12 03:58 PM
Joined: Jan 2003
Posts: 1,788
Greer, SC
TooMany62s Offline
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Greer, SC
I have bad news for you, the 5/16 pushrods may not clear either. At least mine didn't. I learned the lesson the hard way. Cheap and good don't go together. The link bar between two of my 440Source roller lifters broke and wiped out my cam. When I took the valve train apart I found the bearings in most of my 440Source rocker arms were rough and the 440Source rocker shafts were galled. Plus the "hardened tips" on the 440Source valves were showing signs of wear. All of this at less than a few hundred street miles. Do yourself a favor, if you have any other 440Source stuff, replace it now while you still have a chance to sell it to some sucker. The only thing I'm still using is the head castings.

Last edited by TooMany62s; 03/07/12 07:44 PM.
Re: Stealth Heads --- Rocker Arms [Re: GTX MATT] #1192874
03/07/12 04:00 PM
03/07/12 04:00 PM
Joined: Mar 2010
Posts: 1,880
Out in Left Field, NY
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bobs66440 Offline
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Out in Left Field, NY
Quote:

What is the preferred method to clearance them?


Die grinder with a carbide cutter. Dremel may work ok also.

Here's another thread on the subject
https://board.moparts.org/ubbthreads/show...amp;Search=true

Re: Stealth Heads --- Rocker Arms [Re: bobs66440] #1192875
03/07/12 04:41 PM
03/07/12 04:41 PM
Joined: Jan 2007
Posts: 780
Woodinville, WA
Viol8r Offline OP
super stock
Viol8r  Offline OP
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Joined: Jan 2007
Posts: 780
Woodinville, WA
Thanks for the link.

I believe there are some variables based on your rocker arm set-up, but it is pretty much a given I will have to clearance at this point.


1968 Pro-Touring Dodge Charger
*2011 Optima Ultimate Street Car Challenge Invitee
http://www.popularhotrodding.com/features/1203phr_1968_dodge_charger/index.html
Re: Stealth Heads --- Rocker Arms [Re: Viol8r] #1192876
03/07/12 04:52 PM
03/07/12 04:52 PM
Joined: Jan 2003
Posts: 21,050
Niles , Ohio
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therocks Offline
oh wait.but hey.lets see.oh yeah.
therocks  Offline
oh wait.but hey.lets see.oh yeah.
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Niles , Ohio
Guess I got lucky.I run Crane alloy 3/8 and old Sig Erson iron rockers.They just clear with no clearance.Rocky


Chrysler Firepower
Re: Stealth Heads --- Rocker Arms [Re: therocks] #1192877
03/11/12 10:36 AM
03/11/12 10:36 AM
Joined: Mar 2010
Posts: 1,880
Out in Left Field, NY
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bobs66440 Offline
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Out in Left Field, NY
I set up the valvetrain on mine this weekend and there is plenty of clearance with the 5/16 rods...




Re: Stealth Heads --- Rocker Arms [Re: bobs66440] #1192878
03/11/12 12:04 PM
03/11/12 12:04 PM
Joined: Nov 2004
Posts: 843
Suffolk,VA
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ireland383 Offline
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Joined: Nov 2004
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Suffolk,VA
Ball to ball 5/16's pushrods here, plenty of clearance for me.

Re: Stealth Heads --- Rocker Arms [Re: ireland383] #1192879
03/11/12 01:05 PM
03/11/12 01:05 PM
Joined: Jan 2007
Posts: 780
Woodinville, WA
Viol8r Offline OP
super stock
Viol8r  Offline OP
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Joined: Jan 2007
Posts: 780
Woodinville, WA
They are designed for stock valvetrain. Most aftermarket aluminum rockers just don't seem to be working.


1968 Pro-Touring Dodge Charger
*2011 Optima Ultimate Street Car Challenge Invitee
http://www.popularhotrodding.com/features/1203phr_1968_dodge_charger/index.html






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