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Re: Roller rocker arms for 440 [Re: AutoEngineer] #675892
04/21/10 03:35 PM
04/21/10 03:35 PM
Joined: Jan 2003
Posts: 31,061
Oregon
A
AndyF Offline
I Win
AndyF  Offline
I Win
A

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Posts: 31,061
Oregon
Why waste your money, just use stock stamped rocker arms. That cam is barely bigger than a factory cam, no need to get trick with the rocker arms. Listen to the advice people are giving you, save your money for something that matters.

Re: Roller rocker arms for 440 [Re: AndyF] #675893
04/21/10 04:25 PM
04/21/10 04:25 PM
Joined: Jan 2003
Posts: 17,904
S.E. Michigan
ZIPPY Offline
I Live Here
ZIPPY  Offline
I Live Here

Joined: Jan 2003
Posts: 17,904
S.E. Michigan
Put stock rockers on it.

Then, take the money you saved and spend it on a a higher stall converter, sticky tires, an 850 carb etc.

Either way, the money's spent....pick your poison


Rich H.

Esse Quam Videri




Re: Roller rocker arms for 440 [Re: AndyF] #675894
04/21/10 04:30 PM
04/21/10 04:30 PM
Joined: Oct 2004
Posts: 8,165
Left Coast
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BobR Offline
master
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Left Coast
Quote:

Why waste your money, just use stock stamped rocker arms. That cam is barely bigger than a factory cam, no need to get trick with the rocker arms. Listen to the advice people are giving you, save your money for something that matters.




With all due respect, Andy, I've broken dozens of Chrysler stamped steel rockers in my E/sa Duster. I had to use them back when I was racing in stock eliminator. I wouldn't use those things on my lawn mower. Crane Gold's are the best bang for the budget being discussed here.

Re: Roller rocker arms for 440 [Re: BobR] #675895
04/21/10 06:31 PM
04/21/10 06:31 PM
Joined: Jan 2003
Posts: 31,061
Oregon
A
AndyF Offline
I Win
AndyF  Offline
I Win
A

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Posts: 31,061
Oregon
I would imagine that a E/SA motor gets wound a little tighter than what this guy will be doing. The engine build sounds so mild to me that I can't see him wasting money on aftermarket parts.

Re: Roller rocker arms for 440 [Re: AndyF] #675896
04/21/10 07:17 PM
04/21/10 07:17 PM
Joined: Jan 2003
Posts: 25,984
United Socialist States of Ame...
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tboomer Offline
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United Socialist States of Ame...
Andy... But if he wants Isky 1.5s on the cheap...missing one spring...I know where there is a set!!


Need your rear end checked out? Contact Grizzly!!
Re: Roller rocker arms for 440 [Re: AndyF] #675897
04/21/10 09:15 PM
04/21/10 09:15 PM
Joined: Jan 2003
Posts: 24,562
Brookeville, Md
Mr.Yuck Offline
Not enough dumb comments...yet
Mr.Yuck  Offline
Not enough dumb comments...yet

Joined: Jan 2003
Posts: 24,562
Brookeville, Md
Quote:

Why waste your money, just use stock stamped rocker arms. That cam is barely bigger than a factory cam, no need to get trick with the rocker arms. Listen to the advice people are giving you, save your money for something that matters.




Buddy ran 11.70's all day in a 67 GTX w/ a 509 and 4.10's. Stock rockers and shafts. I ran 12.0's in 67 coronet 440 all day stock rockers and shafts. If you do anything just run the old school ductiles


[IMG]http://i66.tinypic.com/pui5j.jpg[/IMG]
Coming soon!!!!
Re: Roller rocker arms for 440 [Re: Mr.Yuck] #675898
04/22/10 12:45 AM
04/22/10 12:45 AM
Joined: Nov 2006
Posts: 1,459
oklahoma
F
forphorty Offline
pro stock
forphorty  Offline
pro stock
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Posts: 1,459
oklahoma
another vote here for stock rockers.

Re: Roller rocker arms for 440 [Re: forphorty] #675899
04/22/10 12:56 AM
04/22/10 12:56 AM
Joined: Nov 2003
Posts: 6,293
Rock Springs
Bob_Coomer Offline
master
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Posts: 6,293
Rock Springs
If this is just a simple Hyd flat cam read on..
I know my opinion isnt worth but just a few penny's, but I cant believe anyone hasnt asked why such high spring pressure for a simple Hyd flat tappet cam?
I mean for a engine that wont see or I should say cant see much over 6K...Why all the suggestions for $1000+ rocker arms?

I would just use a good set of HD stock rocker arms.

I mean 350 lbs open pressure on a MP 509 equivalent cam...

That engine doesnt need much over 100 lbs seat and 225-250 lbs open pressure, and he wont eat parts from race to race.

I can say this..they are 99% better than the proform junk

Last edited by Bob_Coomer; 04/22/10 01:00 AM.

[color:"red"]65 Hemi Belvedere coming soon [/color]
[color:"#00FF00"]557" Indy engine 1.07 60ft 144mph in the 8th 2100 lbs package [/color]
Re: Roller rocker arms for 440 [Re: Bob_Coomer] #675900
04/22/10 06:41 AM
04/22/10 06:41 AM
Joined: Jan 2003
Posts: 4,743
Moved to N.E. Tennessee
GomangoCuda Offline
master
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Joined: Jan 2003
Posts: 4,743
Moved to N.E. Tennessee
Quote:

If this is just a simple Hyd flat cam read on..
I know my opinion isnt worth but just a few penny's, but I cant believe anyone hasnt asked why such high spring pressure for a simple Hyd flat tappet cam?
I mean for a engine that wont see or I should say cant see much over 6K...Why all the suggestions for $1000+ rocker arms?

I would just use a good set of HD stock rocker arms.

I mean 350 lbs open pressure on a MP 509 equivalent cam...

That engine doesnt need much over 100 lbs seat and 225-250 lbs open pressure, and he wont eat parts from race to race.

I can say this..they are 99% better than the proform junk




LOL that open pressure was at .700 lift and he doesn't have anywhere near that.

Like I said in my earlier post, Stock rockers will work fine. Buy used Isky or Crane iron rockers if you want something better and adjustable. Roller rockers are unnecessary for this build and just something else to fail. But if you insist on rollers DO NOT buy cheap junk.


In theory, there is no difference between theory and practice. In practice, there is.
Re: Roller rocker arms for 440 [Re: AutoEngineer] #675901
04/22/10 07:28 AM
04/22/10 07:28 AM
Joined: May 2008
Posts: 5,399
Aurora, Colorado
451Mopar Offline
master
451Mopar  Offline
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Posts: 5,399
Aurora, Colorado
Those PRW rockers might be worth tying in a mild motor? They look like they may be re-branded CAT rockers (at least they are the same price.)

A member of our car club is running the 1.7:1 aluminum CAT rockers on a mild 440, and so far has had no problems?

Re: Roller rocker arms for 440 [Re: AndyF] #675902
04/22/10 09:23 AM
04/22/10 09:23 AM
Joined: Oct 2004
Posts: 8,165
Left Coast
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BobR Offline
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Left Coast
Quote:

I would imagine that a E/SA motor gets wound a little tighter than what this guy will be doing. The engine build sounds so mild to me that I can't see him wasting money on aftermarket parts.




Shifted at 7000. The pushrod cup use to get knocked out of them like it was stamped out and the pushrod would go up and down in the hole without opening the valve.

Re: Roller rocker arms for 440 [Re: BobR] #675903
04/22/10 10:43 AM
04/22/10 10:43 AM
Joined: Mar 2006
Posts: 2,675
Mt. Eden Ky.
Hemi Allstate Offline
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Mt. Eden Ky.
Quote:

Quote:

I would imagine that a E/SA motor gets wound a little tighter than what this guy will be doing. The engine build sounds so mild to me that I can't see him wasting money on aftermarket parts.




Shifted at 7000. The pushrod cup use to get knocked out of them like it was stamped out and the pushrod would go up and down in the hole without opening the valve.





I had that happen twice on a bone stock 68 383 RR engine, that never topped 5,000 rpm My

Mark



1996 Ram 1500 Sport
1968 road runner
1952 Sears Allstate licensed, pump gas, Hemi 5.98 @ 115.73 1.33 60 ft. The best is yet to come. Painless Performance / Street RODDER magazine Top 100 for 2019
Re: Roller rocker arms for 440 [Re: Hemi Allstate] #675904
04/22/10 06:46 PM
04/22/10 06:46 PM
Joined: Oct 2004
Posts: 354
Livonia Michigan
440dart Offline
enthusiast
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enthusiast

Joined: Oct 2004
Posts: 354
Livonia Michigan
Quote:

Quote:

Quote:

I would imagine that a E/SA motor gets wound a little tighter than what this guy will be doing. The engine build sounds so mild to me that I can't see him wasting money on aftermarket parts.




Shifted at 7000. The pushrod cup use to get knocked out of them like it was stamped out and the pushrod would go up and down in the hole without opening the valve.





I had that happen twice on a bone stock 68 383 RR engine, that never topped 5,000 rpm My

Mark




And that is why would not use stock rockers on any high performance motor Jack.


Yes I live in Michigan, so there is still 1 light on
Re: Roller rocker arms for 440 [Re: 440dart] #675905
04/22/10 08:30 PM
04/22/10 08:30 PM
Joined: Feb 2005
Posts: 28,312
Cincinnati, Ohio
Challenger 1 Offline
Too Many Posts
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Cincinnati, Ohio
Who is it that posted a picture of his push rod sticking thru his rocker? He posted it recently but I can't find the thread now.

Re: Roller rocker arms for 440 [Re: Challenger 1] #675906
04/22/10 09:46 PM
04/22/10 09:46 PM
Joined: Sep 2004
Posts: 1,226
Cookeville
Chilort Offline
Will Work For Mopars
Chilort  Offline
Will Work For Mopars

Joined: Sep 2004
Posts: 1,226
Cookeville
Harland Sharp rockers don't cost $1k. They are slightly over $600.

Price up a set of the other brands (IF you can find them ... Mopar ductile iron rockers haven't been offered for a bit). Then make sure you add in hardened shafts (come with the HS kit). Then add in the hold downs (come with the HS kit). Then add in any spacers or springs (come with the HS kit). Then add in bushing or other fitting services (not necessary with the HS kit).... by the time it is all said and done the Harland Sharp rockers come in within 10% of the other brands listed here.

If I could have found the Mopar ductile iron rockers when I did my build that is what I would have used because I'm not using a super aggressive cam either. But when I went looking they weren't making them.

Re: Roller rocker arms for 440 [Re: AutoEngineer] #675907
04/23/10 12:48 PM
04/23/10 12:48 PM
Joined: Jul 2008
Posts: 179
Up in the North and Far Away
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AutoEngineer Offline OP
member
AutoEngineer  Offline OP
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Posts: 179
Up in the North and Far Away
Thanx a lot for all your comments

From stamped steel rockers I have so many bad earlier experiences. Pushrods hitting their way up through the cup.

Yup, it's not worth of using close to $900 rockers on $900 heads and mild combo.

When bought the set of Proforms, it honestly was a wrong decision. You just can't buy a cheap and a good in a same package. If you want, you have to buy them separately, and it will cost more money than buying the good at first. In our case we had the possibility to return the Proforms back to the Speed Shop.

Find enclosed a picture from the Proforms. 14 of the set of 16 were similar and having blue anodization on the bearing surface.

Harland Sharp rockers are having large fulcrum needle bearings between the arm and the shaft. I'm a little bit afraid how they stand against wear. Maybe I shouldn't, but 440Source set is having similar construction and I have seen one that had had excessive wear on shafts and arm bearings after only a few 100 miles.

Ductile iron rockers, for sure they are bullet proof, but are they causing more wear to the valve tip and valve guides than rollers??? And a little bit higher mass inertia I know this inertia issue is not a critical characteristic on this combo, but it just came to mind when thinking pros and cons

Re: Roller rocker arms for 440 [Re: AutoEngineer] #675908
04/23/10 12:55 PM
04/23/10 12:55 PM
Joined: Jul 2004
Posts: 19,318
State of confusion
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Thumperdart Offline
I Live Here
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Joined: Jul 2004
Posts: 19,318
State of confusion
As far as the wear issues w/ HS`s, I`ve been street driving and racing mine for over 5 years and they`re still going strong w/a solid roller w/580+ lbs open pressures for what it`s worth.


72 Dart 470 n/a BB stroker street car `THUMPER`...Check me out on FB Dominic Thumper for videos and lots of carb pics......760-900-3895.....
Re: Roller rocker arms for 440 [Re: AutoEngineer] #675909
04/23/10 12:59 PM
04/23/10 12:59 PM
Joined: Jul 2008
Posts: 179
Up in the North and Far Away
A
AutoEngineer Offline OP
member
AutoEngineer  Offline OP
member
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Joined: Jul 2008
Posts: 179
Up in the North and Far Away
Here's one picture from the Proform arm after "shimmed" the shaft with some temporary plastic shims. Without those "shims" the rocker arm was hardly facing the valve tip, it was almost on the edge of tip.

Sorry about the quality of pic

These Proforms were returned via the local Speed Shop I guess back to China

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