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STEALTH HEADS AND PROFORM ROLLER ROCKER ISSUES! #1477869
08/01/13 08:11 PM 08/01/13 08:11 PM
Joined: Apr 2011
Posts: 1,520
West Palm Beach, Florida
Copper Dart Offline OP
pro stock
Copper Dart  Offline OP
pro stock

Joined: Apr 2011
Posts: 1,520
West Palm Beach, Florida
I was just informed that there is a problem with the fit of the new Proform Roller rockers on my new 440 Source Stealth heads.
I'm running a >.500 lift cam with 5/16 Pushrod.
I was told roller tip to valve stem contact point is wrong and the heads will have to be clearanced to fit the pushrods. Something seems wrong.
This is a new problem and is being investigated but I figured to post the issue for some feedback from you Motor Heads
I must add that I'm confident that my builder will identify exactly what is the cause and the correct solution.
It's got me a bit nervous that my Heart and my Pocket may not be able to handle the solution.
Please help if you can.
Thanks moparts!

Common sense, the least common of all the senses.
Mom.

For fear of ridicule, society stifles creativity.
Ricky Valdes
Re: STEALTH HEADS AND PROFORM ROLLER ROCKER ISSUES! [Re: Copper Dart] #1477870
08/01/13 08:46 PM 08/01/13 08:46 PM
Joined: Nov 2009
Posts: 2,177
ill
D
dennismopar73 Offline
top fuel
dennismopar73  Offline
top fuel
D

Joined: Nov 2009
Posts: 2,177
ill
No worries, My RPMs had a simular issue, My engine builder said this is normal stuff comes into play once in a while,!!
Re: STEALTH HEADS AND PROFORM ROLLER ROCKER ISSUES! [Re: dennismopar73] #1477871
08/01/13 08:48 PM 08/01/13 08:48 PM
Joined: Apr 2011
Posts: 1,520
West Palm Beach, Florida
Copper Dart Offline OP
pro stock
Copper Dart  Offline OP
pro stock

Joined: Apr 2011
Posts: 1,520
West Palm Beach, Florida
What was the fix?

Common sense, the least common of all the senses.
Mom.

For fear of ridicule, society stifles creativity.
Ricky Valdes
Re: STEALTH HEADS AND PROFORM ROLLER ROCKER ISSUES! [Re: Copper Dart] #1477872
08/01/13 08:51 PM 08/01/13 08:51 PM
Joined: Mar 2009
Posts: 2,467
Sydney,Australia
tex013 Offline
top fuel
tex013  Offline
top fuel

Joined: Mar 2009
Posts: 2,467
Sydney,Australia
grind back into the head/port side material to clearance pushrods . done it on both sets of 440 source heads I have .

Tex

New best ET 10.259@129.65 .
New best MPH 130.32
Finally fitted a solid cam,
stepped it up a bit more
3690lbs through the mufflers
New World block 3780lbs 10.278@130.80 . Wowser 10.253@130.24 footbraking from 1500rpm
Power by Tex's Automotive
Re: STEALTH HEADS AND PROFORM ROLLER ROCKER ISSUES! [Re: tex013] #1477873
08/01/13 08:57 PM 08/01/13 08:57 PM
Joined: Apr 2011
Posts: 1,520
West Palm Beach, Florida
Copper Dart Offline OP
pro stock
Copper Dart  Offline OP
pro stock

Joined: Apr 2011
Posts: 1,520
West Palm Beach, Florida
Thanks for responding.
What about the roller tips to valve stem issue?

Common sense, the least common of all the senses.
Mom.

For fear of ridicule, society stifles creativity.
Ricky Valdes
Re: STEALTH HEADS AND PROFORM ROLLER ROCKER ISSUES! [Re: Copper Dart] #1477874
08/01/13 08:59 PM 08/01/13 08:59 PM
Joined: Jan 2003
Posts: 20,826
A collage of whims
topside Offline
Too Many Posts
topside  Offline
Too Many Posts

Joined: Jan 2003
Posts: 20,826
A collage of whims
Opening up the pushrod holes is a pretty common tweak on Stealth heads, not a big deal - maybe 1 hour - though a bit of a disappointment. But I very rarely have anything go together without any effort. I can't comment on your rocker arms, but the Harland Sharps on mine were fine. Expect to need some improvement on the valve job. Your guy hopefully will check & optimize pushrod length.
Re: STEALTH HEADS AND PROFORM ROLLER ROCKER ISSUES! [Re: topside] #1477875
08/01/13 09:05 PM 08/01/13 09:05 PM
Joined: Jan 2003
Posts: 32,394
Q
Quicktree Offline
I Win
Quicktree  Offline
I Win
Q

Joined: Jan 2003
Posts: 32,394
WELL YOU USED TWO OF THE CHEAPEST PIECES ON THE MARKET WHAT DID YOU EXPECT?
Re: STEALTH HEADS AND PROFORM ROLLER ROCKER ISSUES! [Re: Quicktree] #1477876
08/01/13 09:06 PM 08/01/13 09:06 PM
Joined: Nov 2003
Posts: 7,348
Mt.Vernon ,Ohio
VernMotor Offline
master
VernMotor  Offline
master

Joined: Nov 2003
Posts: 7,348
Mt.Vernon ,Ohio
Quote:

WELL YOU USED TWO OF THE CHEAPEST PIECES ON THE MARKET WHAT DID YOU EXPECT?



I was not going to go there ..

Re: STEALTH HEADS AND PROFORM ROLLER ROCKER ISSUES! [Re: VernMotor] #1477877
08/01/13 09:09 PM 08/01/13 09:09 PM
Joined: Jan 2003
Posts: 32,394
Q
Quicktree Offline
I Win
Quicktree  Offline
I Win
Q

Joined: Jan 2003
Posts: 32,394
Quote:

Quote:

WELL YOU USED TWO OF THE CHEAPEST PIECES ON THE MARKET WHAT DID YOU EXPECT?



I was not going to go there ..

somebody has to be honest

Re: STEALTH HEADS AND PROFORM ROLLER ROCKER ISSUES! [Re: topside] #1477878
08/01/13 09:12 PM 08/01/13 09:12 PM
Joined: Apr 2011
Posts: 1,520
West Palm Beach, Florida
Copper Dart Offline OP
pro stock
Copper Dart  Offline OP
pro stock

Joined: Apr 2011
Posts: 1,520
West Palm Beach, Florida
Yes, custom ordered thick walled 5/16 with new adjusters ( pro forms were poorly made at the tip/ball end ). A complete pro valve job was done.
I'm sure for you "season gear heads" it's no sweat but this is my first pro full build, blued, balanced and to be run in/Dyno'ed .
It's like we're having a baby again, but this time I'm much more excited than my wife!

Common sense, the least common of all the senses.
Mom.

For fear of ridicule, society stifles creativity.
Ricky Valdes
Re: STEALTH HEADS AND PROFORM ROLLER ROCKER ISSUES! [Re: Copper Dart] #1477879
08/01/13 09:22 PM 08/01/13 09:22 PM
Joined: Mar 2007
Posts: 3,300
Northern Indiana
Dunnuck Racing Offline
master
Dunnuck Racing  Offline
master

Joined: Mar 2007
Posts: 3,300
Northern Indiana
I hate to be the bearer of bad news,but I have a set of those Proform rocker arms that were falsely advertised as something else sitting here. They are too short to work properly on any cylinder head. Maybe your machinist knows something I don't on how to make them work but mine are paperweights.
Keith

www.dunnuckracing.com
Re: STEALTH HEADS AND PROFORM ROLLER ROCKER ISSUES! [Re: Dunnuck Racing] #1477880
08/01/13 09:37 PM 08/01/13 09:37 PM
Joined: Apr 2011
Posts: 1,520
West Palm Beach, Florida
Copper Dart Offline OP
pro stock
Copper Dart  Offline OP
pro stock

Joined: Apr 2011
Posts: 1,520
West Palm Beach, Florida
I believe they can be returned.
My pockets are near empty so witch ones to choose?
Even with the refund, I believe I'll be spending another $300. +|-

Common sense, the least common of all the senses.
Mom.

For fear of ridicule, society stifles creativity.
Ricky Valdes
Re: STEALTH HEADS AND PROFORM ROLLER ROCKER ISSUES! [Re: Copper Dart] #1477881
08/01/13 09:47 PM 08/01/13 09:47 PM
Joined: Mar 2007
Posts: 3,300
Northern Indiana
Dunnuck Racing Offline
master
Dunnuck Racing  Offline
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Joined: Mar 2007
Posts: 3,300
Northern Indiana
I have used the Crane Gold rockers for years,but Hughes Engines has a similar priced set to them.
Keith

www.dunnuckracing.com
Re: STEALTH HEADS AND PROFORM ROLLER ROCKER ISSUES! [Re: Copper Dart] #1477882
08/01/13 09:48 PM 08/01/13 09:48 PM
Joined: Dec 2006
Posts: 3,396
Pa
Hot 340 Offline
master
Hot 340  Offline
master

Joined: Dec 2006
Posts: 3,396
Pa
Quote:

I believe they can be returned.
My pockets are near empty so witch ones to choose?
Even with the refund, I believe I'll be spending another $300. +|-


You simply cannot imagine what even just one elcheapo part can do to set off an entire chain reaction of problems. That last time I helped someone with his engine he bought a few of these "bargain" parts and he ended up selling the car out of disgust. Buy good rockers.
Re: STEALTH HEADS AND PROFORM ROLLER ROCKER ISSUES! [Re: Hot 340] #1477883
08/01/13 10:00 PM 08/01/13 10:00 PM
Joined: Oct 2005
Posts: 8,882
Ontario, Canada
S
Stanton Offline
Don't question me!
Stanton  Offline
Don't question me!
S

Joined: Oct 2005
Posts: 8,882
Ontario, Canada
Before you get depressed and hang yourself, clearancing for the pushrods should be a minimal expense. But prior to clearancing, you need the rockers you're going to use since the geometry may differ.

You don't need to go crazy on rockers. With only .500 lift, you could use just about any good rocker and they don't need to be rollers. The Crane or Isky nodular iron one's would work just fine with that cam if you could find a used set. I think Hughes has a reasonably priced roller.
Re: STEALTH HEADS AND PROFORM ROLLER ROCKER ISSUES! [Re: Quicktree] #1477884
08/01/13 10:01 PM 08/01/13 10:01 PM
Joined: Apr 2011
Posts: 1,520
West Palm Beach, Florida
Copper Dart Offline OP
pro stock
Copper Dart  Offline OP
pro stock

Joined: Apr 2011
Posts: 1,520
West Palm Beach, Florida
Quote:

WELL YOU USED TWO OF THE CHEAPEST PIECES ON THE MARKET WHAT DID YOU EXPECT?


I'm glad you felt it necessary to YELL that to me.

Am I mistaken that eddy's are made overseas too?
I am painting the heads and block to look like stock iron castings with a/c and wanted the advantage of aluminum heads. Not many choices out there guy.
I hope this doesn't turn into a nightmare but it was the best I could afford for my show car.

Common sense, the least common of all the senses.
Mom.

For fear of ridicule, society stifles creativity.
Ricky Valdes
Re: STEALTH HEADS AND PROFORM ROLLER ROCKER ISSUES! [Re: Copper Dart] #1477885
08/01/13 10:18 PM 08/01/13 10:18 PM
Joined: Feb 2011
Posts: 4,302
Nebraska
72Swinger Offline
master
72Swinger  Offline
master

Joined: Feb 2011
Posts: 4,302
Nebraska
Quote:

Quote:

WELL YOU USED TWO OF THE CHEAPEST PIECES ON THE MARKET WHAT DID YOU EXPECT?


I'm glad you felt it necessary to YELL that to me.

Am I mistaken that eddy's are made overseas too?
I am painting the heads and block to look like stock iron castings with a/c and wanted the advantage of aluminum heads. Not many choices out there guy.
I hope this doesn't turn into a nightmare but it was the best I could afford for my show car.


I wouldn't hesitate to run stock rockers on a .500 lift juice cam.

Mopar to the bone!!!
Re: STEALTH HEADS AND PROFORM ROLLER ROCKER ISSUES! [Re: 72Swinger] #1477886
08/01/13 10:56 PM 08/01/13 10:56 PM
Joined: Feb 2007
Posts: 1,025
Las Vegas, NV
dodgeboy11 Offline
super stock
dodgeboy11  Offline
super stock

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Posts: 1,025
Las Vegas, NV
http://www.ebay.com/itm/Mopar-383-413-42...978&vxp=mtr

I have a set of these on my 440. The adjusters needed to be replaced due to one of them breaking on the dyno, used T&D adjusters in my case. So far they're holding up well. The ones I had for my small block had hardness issues on the rollers and were falling apart. They had CAT cast into them and these on the 440 do not. I still have no doubt they're made in the same place but apparently got the roller hardness figured out finally. Mine's running approximately .500" lift at the valve as well. I recommend name brand springs on those 'Source heads. Haven't heard much good about the chinese made springs and dropping a valve can make a boat anchor out of a good engine really quick. Maybe you already have good springs, didn't catch it if you posted that. Good luck, hope you don't give up on the project, good things take time.

7799125-7-29-10002.jpg (165 downloads)
Re: STEALTH HEADS AND PROFORM ROLLER ROCKER ISSUES! [Re: 72Swinger] #1477887
08/01/13 10:58 PM 08/01/13 10:58 PM
Joined: Jan 2003
Posts: 20,826
A collage of whims
topside Offline
Too Many Posts
topside  Offline
Too Many Posts

Joined: Jan 2003
Posts: 20,826
A collage of whims
The Eddy heads on my other motor needed the same tweaking as the Stealths on my newest motor.
I've heard Crane Gold & Hughes are decent rocker arms, and I think 383man is running the 440Source or Hughes rockers; hopefully he'll chime in and correct me. I spend the extra $$ for HS because I've always had good experience with them, but that's overkill for your combo.
Re: STEALTH HEADS AND PROFORM ROLLER ROCKER ISSUES! [Re: topside] #1477888
08/01/13 11:20 PM 08/01/13 11:20 PM
Joined: Apr 2011
Posts: 1,520
West Palm Beach, Florida
Copper Dart Offline OP
pro stock
Copper Dart  Offline OP
pro stock

Joined: Apr 2011
Posts: 1,520
West Palm Beach, Florida
With the custom length pushrods and adjuster tips already purchased (they cost a bit more than the rockers! ) I think staying with roller rockers is wise.
If I knew it would become an issue, I might have opted to stick with the stock valve gear for my mild build.
20:20

Looks like a few have had good results with the 440 source heads.
Confident enough to purchase them again! I hope mine turn out good too.

Common sense, the least common of all the senses.
Mom.

For fear of ridicule, society stifles creativity.
Ricky Valdes
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