Re: New Pushrods Needed with New Rocker Arms?
[Re: 67Satty]
#2678726
07/18/19 03:24 PM
07/18/19 03:24 PM
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Joined: Oct 2007
Posts: 4,206 New York
polyspheric
master
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master
Joined: Oct 2007
Posts: 4,206
New York
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At least examine all the mating surfaces. If you see any radial (circular) abrasion or scuff marks this may be a good idea, but I generally see the 2 shapes just slowly polish each other evenly. If I have any doubt with new products, I lap them in with very fine compound and number them for assembly. The most common damage I've seen is from geo - the bad rocker rotation allows the lever body to touch the pushrod tube at the end of travel, etc.
Boffin Emeritus
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Re: New Pushrods Needed with New Rocker Arms?
[Re: 67Satty]
#2678789
07/18/19 06:21 PM
07/18/19 06:21 PM
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Joined: Jun 2008
Posts: 3,916 usa
lewtot184
master
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master
Joined: Jun 2008
Posts: 3,916
usa
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No, getting rid of my set of 440Source 1.5 roller rockers after the pin holding the roller tip on one of them sheared off. I'm thinking of going with a set of Mancini-branded Harland Sharps. Trying to decide between 1.5 and 1.6 ratio. I'll be switching from my stock iron 452s to 84cc E Streets at the same time. Just concerned about clearance problems with my 3/8" pushrods and the Edelbrock heads, though I've read where someone on here used the 1.6 Mancini rockers with Edelbrock RPMs with 3/8" pushrods with no problems. from my experience with the edelbrock vs iron head your going to need a longer push rod with the edelbrocks. get the rockers you want and a checking push rod and checking valve spring because you'll probably have geometry issues too.
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Re: New Pushrods Needed with New Rocker Arms?
[Re: lewtot184]
#2678826
07/18/19 07:21 PM
07/18/19 07:21 PM
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Joined: Nov 2003
Posts: 36,040 Lincoln Nebraska
RapidRobert
Circle Track
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Circle Track
Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
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On getting the right length read the B3 raceing info on their site. In a nutshell you want a 90 deg (right) angle (valve to rocker) at 1/2 cam lift to give you the most area under the curve to get the most out of your cam choice. On the other side Hughes has pushrod to rocker angle article.
live every 24 hour block of time like it's your last day on earth
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Re: New Pushrods Needed with New Rocker Arms?
[Re: 67Satty]
#2678882
07/18/19 10:01 PM
07/18/19 10:01 PM
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Joined: Aug 2003
Posts: 43,174 Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 43,174
Bend,OR USA
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No, getting rid of my set of 440Source 1.5 roller rockers after the pin holding the roller tip on one of them sheared off. I'm thinking of going with a set of Mancini-branded Harland Sharps. Trying to decide between 1.5 and 1.6 ratio. I'll be switching from my stock iron 452s to 84cc E Streets at the same time. Just concerned about clearance problems with my 3/8" pushrods and the Edelbrock heads, though I've read where someone on here used the 1.6 Mancini rockers with Edelbrock RPMs with 3/8" pushrods with no problems. If I was you I would call Harland sharp direct and order directly from them so you get the latest, best designed rocker arms for your heads Tell Steve I recommend you to them also
Last edited by Cab_Burge; 07/18/19 10:02 PM.
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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