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440 stamped rocker arm replacements #2237866
01/20/17 01:57 PM
01/20/17 01:57 PM
Joined: Jul 2014
Posts: 51
Duluth, Minnesota
Moondog Offline OP
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Moondog  Offline OP
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Duluth, Minnesota
I am restoring a 1970 440 magnum, and am wondering which rocker arms to purchase. I have used the Mopar Performance rocker arms for decades, but have been only able to purchase the RIGHT(P4529476) side. The LEFT(P4529477) are nowhere to be found. I am placing an ad in the WANTED section, also. There are other brands made by Elgin, and Sealed Power, and am wondering if anyone has had good luck with aftermarket. How do they compare in ratio and side clearance? Thanks


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Re: 440 stamped rocker arm replacements [Re: Moondog] #2237878
01/20/17 02:07 PM
01/20/17 02:07 PM

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crabman173
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The ones available from elgin, Ebay etc that I have seen are not usable--they are much too narrow--they are thin. I had several in last batch that the stamped hole would not allow shaft to pass--I opened them up--ran them on test stand 440--there was a weird chatter and noise--replaced them all with good used units and it went away so for time being until good quality units come back--I am using recycled old stockers when need be.

Re: 440 stamped rocker arm replacements [Re: ] #2238096
01/20/17 08:48 PM
01/20/17 08:48 PM
Joined: Jul 2014
Posts: 51
Duluth, Minnesota
Moondog Offline OP
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Thanks for the input, that is what I thought. Other people have told me they are cleaning up their used stuff.


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Re: 440 stamped rocker arm replacements [Re: Moondog] #2356726
08/19/17 07:29 PM
08/19/17 07:29 PM
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bee1971 Offline
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Anyone running Sealed Power Replacements ? From Summit Racing

Thanx Scott


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Re: 440 stamped rocker arm replacements [Re: Moondog] #2356753
08/19/17 08:09 PM
08/19/17 08:09 PM
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cdp Offline
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There used to be a heavier stamped version, compared to the stock ones from MP as well. I have a set for a SB I think, new. Kept them ... for just in case. Noticeably thicker.







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