Re: Roller rocker arms for 440
[Re: AndyF]
#675893
04/21/10 04:25 PM
04/21/10 04:25 PM
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Joined: Jan 2003
Posts: 17,904 S.E. Michigan
ZIPPY
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 17,904
S.E. Michigan
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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
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Re: Roller rocker arms for 440
[Re: AndyF]
#675894
04/21/10 04:30 PM
04/21/10 04:30 PM
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Joined: Oct 2004
Posts: 8,165 Left Coast
BobR
master
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master
Joined: Oct 2004
Posts: 8,165
Left Coast
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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.
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Re: Roller rocker arms for 440
[Re: AndyF]
#675897
04/21/10 09:15 PM
04/21/10 09:15 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:
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
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Re: Roller rocker arms for 440
[Re: forphorty]
#675899
04/22/10 12:56 AM
04/22/10 12:56 AM
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Joined: Nov 2003
Posts: 6,293 Rock Springs
Bob_Coomer
master
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master
Joined: Nov 2003
Posts: 6,293
Rock Springs
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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]
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Re: Roller rocker arms for 440
[Re: AndyF]
#675902
04/22/10 09:23 AM
04/22/10 09:23 AM
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Joined: Oct 2004
Posts: 8,165 Left Coast
BobR
master
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master
Joined: Oct 2004
Posts: 8,165
Left Coast
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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.
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Re: Roller rocker arms for 440
[Re: AutoEngineer]
#675907
04/23/10 12:48 PM
04/23/10 12:48 PM
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Joined: Jul 2008
Posts: 179 Up in the North and Far Away
AutoEngineer
OP
member
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OP
member
Joined: Jul 2008
Posts: 179
Up in the North and Far Away
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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
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Re: Roller rocker arms for 440
[Re: AutoEngineer]
#675908
04/23/10 12:55 PM
04/23/10 12:55 PM
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Joined: Jul 2004
Posts: 19,318 State of confusion
Thumperdart
I Live Here
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I Live Here
Joined: Jul 2004
Posts: 19,318
State of confusion
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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.....
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