Author Topic: Rocker arms (here we go again)  (Read 11408 times)

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plovett

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Re: Rocker arms (here we go again)
« Reply #15 on: March 26, 2016, 08:00:25 AM »
You can clearance the Dove rocker arm stand to fit some valve covers.   Mine are clearanced more than in this pic, I think.  I run Mercury Pentroof covers.  I also use Harland Sharp rockers.  It works great at over 400 lbs open pressure on a flat tappet.  I think on my next engine, which will be solid roller, I will use the T&D race setup.

JMO,

paulie


fekbmax

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Re: Rocker arms (here we go again)
« Reply #16 on: March 26, 2016, 08:37:34 AM »
Did I see somewhere that Harland sharp makes HD rockers with bearings ?
Also the new sharp set up looks to be a carbon copy of the  RAU setup from a few years back.
Keith.  KB MAX Racing.

Nightmist66

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Re: Rocker arms (here we go again)
« Reply #17 on: March 26, 2016, 09:07:47 AM »
Harland Sharp does have needle bearing rockers. We have run them. They are in our race motor(13.5:1 solid roller). They are a little bigger than the standard bushed rockers. http://harlandsharp.com/ford_nb.htm


As Jay mentioned, a buddy of mine had a non-hd Comp(Dove) rocker break while cruising down the road.
Jared



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KMcCullah

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Re: Rocker arms (here we go again)
« Reply #18 on: March 26, 2016, 10:13:36 AM »
I've been waiting for somebody to pony up for one of these rocker arm outfits.....

http://www.jomarperformance.com/FE-Rocker-Info.php
Kevin McCullah


MeanGene

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Dove mutations
« Reply #19 on: March 26, 2016, 12:02:21 PM »
I'm thinking if one had a set of heads that were cut for T&D's, and had a set of Dove HD's with the end supports, and also had a Bridgeport, one could whittle out a steel plate that was the thickness of the cut for the T&D's, make whatever clearance cuts necessary for head studs etc., connect the Doves to the steel plate, maybe even add some stock underneath if possible before tapping the holes so one could use longer studs, and as the HD rockers seem to be a stout piece, have a pretty strong setup with the loads spread across the steel plate, and added thread engagement on the studs. If one didn't have the Dove's already, then new T&D's would be the obvious choice- but if one (like me) had this combination of parts in hand (X2 by the way), and the Bridgeport, with a little out of the box thinking, could build it. And not have to convert to pushrod oiling. Pretty sure no one has tried this, but there are some out there with enough cross- experience with the parts to comment- please LOL....

fekbmax

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Re: Rocker arms (here we go again)
« Reply #20 on: March 26, 2016, 12:23:31 PM »
i have looked at the jomar set up a few times, looks to me to be a nice girdle set up for shaft deflection but still only has the standard 4 mounting points and the rockers look alot like harland sharps.
Keith.  KB MAX Racing.

Heo

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Re: Rocker arms (here we go again)
« Reply #21 on: March 26, 2016, 08:52:58 PM »
Mean Gene
In the 80s i did something like that for a
Volvo B20. The valve mecanism is more or
less a copy of the FEs. I made a steel plate
that i bolted down with the headbolts and
on that i bolted a stand i had made for the
rockershaft like oregon camshfts patented
 stand in the link.
I dont remember what roller rockers i used
but i think it was for some mopar

I also made one with a steelplate bolted down
with the headbolts where i bolted SBF
 roller rockers and guide plates on the plate with
 SBF rockerstuds.... when i realised i would
have no oiling  :-[
« Last Edit: March 26, 2016, 08:54:47 PM by Heo »



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BH107

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Re: Rocker arms (here we go again)
« Reply #22 on: March 26, 2016, 11:40:23 PM »
We had an old set of Rocker Arm Specialists rockersl on one of our high risers. They were the same stainless rocker bodies that are still used by Shelby and were really nice pieces.

jayb

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Re: Rocker arms (here we go again)
« Reply #23 on: March 27, 2016, 11:06:45 AM »
i have a set of isky rockers from back in the 70s,is that the ones your talking about,or are the good ones newer than that?

Yes, those are the ones I was talking about.  They are very good rockers.
Jay Brown
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- 1969 Shelby Clone, Drag Week 2015 Winner Modified NA (Average 8.98 @ 149), 585" SOHC

   

MeanGene

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Re: Rocker arms (here we go again)
« Reply #24 on: March 27, 2016, 11:45:25 AM »
Yep, the Isky's are strong as hell- I bought a set in '77, they've been run on up to .660 lift, and are on my Galaxie today and are still like new

manofmerc

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Re: Rocker arms (here we go again)
« Reply #25 on: March 28, 2016, 03:47:26 AM »
Ross from what I understand they still make them .And fixed those issues .Luckily enough I had a good machinist at my job ,Crane wasn't helping me other than telling me nothing was wrong .I would take the rocker stands and have him cut no more than .030 at a time .Take them back home assemble my top end and see what the contact pattern looked like .After getting it centered up we just took .100 off the other stands and all was good .A LOT of effort for someone working in their backyard shop .A couple of years ago Joe Sherman built a nice stroker fe he ran the crane rockers we are speaking of .No mention at all of any valve train geomentry issues .He did say that the rockers weren't a 1.76 ratio .According to Joe they were Closer to 1.82 .Please don't take that  as a definite I am going by memory .No issues with my pushrods and like I said after all the headaches they are fine with me .One other thing the end stands they come with have cleared a set of tall pent roofs and regular cjs too

My427stang

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Re: Rocker arms (here we go again)
« Reply #26 on: March 28, 2016, 10:00:23 AM »
I remember Joe Sherman's comments about the ratio, I wonder if he didn't bother to fix them because back then was the heart when they wee bad.

Ironically, he wasn't able to make much power with that motor either, but it just goes to show you that although an engine is an engine, each has its little tricks to really make them run.
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Ross
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fekbmax

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Re: Rocker arms (here we go again)
« Reply #27 on: March 30, 2016, 07:39:39 PM »
Any one still making offset rockers for the FE ? Who and are they readaly available ?
Keith.  KB MAX Racing.

Heo

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Re: Rocker arms (here we go again)
« Reply #28 on: March 30, 2016, 08:39:13 PM »
At what level does the stock rockers start to be a problem?



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KMcCullah

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Re: Rocker arms (here we go again)
« Reply #29 on: March 30, 2016, 09:26:49 PM »
Any one still making offset rockers for the FE ? Who and are they readaly available ?

T&D has a few different varieties of offsets. Not shaft mounted however....
Kevin McCullah