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Old 08-20-2017, 07:46 AM   #1
TruckYou
 
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Harland Sharp Roller Rocker Opionions

IV got an opportunity to scoop up a set of roller rockers for my 12v at a discount. I'm completely novice to roller rockers, but from what I read on the sites, these are pritty much bolt in pieces, other than the recommended .120 shorter Pushrods. IV got a brand new set of Pushrods being shipped to me now that I ordered last week, that are 7/16 x .120 chromoly at standard length. Can the .120 be adjusted for?

Who's ran or running these? Pro/cons?

Worthy investment?Click the image to open in full size.

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Old 08-20-2017, 11:07 AM   #2
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Unless you're running a no bs comp truck only that going to be spinning ALOT of RPM, I see absolutely no point.


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Old 08-20-2017, 11:22 AM   #3
TruckYou
 
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Speaking from a competition level, not DD.

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Old 08-20-2017, 03:14 PM   #4
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It would be neat to pull a valve cover and see those pretty things under there. lol

Sorry not sure on the length part.
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Old 08-20-2017, 03:56 PM   #5
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In my experience Harland Sharp is a waste of time and junk for diesel applications. Stick to SMT or someone similar.
 
Old 08-20-2017, 04:24 PM   #6
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Cheap stuff is cheap.
That's all the input I have.
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Lolzzzzzz fakin haters
 
Old 08-20-2017, 11:20 PM   #7
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In my experience Harland Sharp is a waste of time and junk for diesel applications. Stick to SMT or someone similar.
Listen to this fella. He knows his stuff.
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Old 08-21-2017, 08:30 AM   #8
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Quote:
Originally Posted by takedown95 View Post
In my experience Harland Sharp is a waste of time and junk for diesel applications. Stick to SMT or someone similar.

What do you see failing on them? I believe they had needle bearings in them and I was never a fan of that.
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Old 08-21-2017, 10:38 AM   #9
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What do you see failing on them? I believe they had needle bearings in them and I was never a fan of that.
Is it a failure, or just more deflection than other brands. You'll definitely lose some high rpm valve lift from deflection!
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Old 08-21-2017, 11:16 AM   #10
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Knock the needle bearings out and install bronze bushings.
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Old 08-21-2017, 11:41 AM   #11
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Quote:
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What do you see failing on them? I believe they had needle bearings in them and I was never a fan of that.
I didn't see the needle bearing fail as much as the roller contact on the valve bridges (24V). I had a brand new set installed, ran the truck 5 passes and went to check the valve lash and the roller contacts were laying in the head on 5 of 12 rockers. The rockers were trashed. Checked the valve lash on the others and they were spot on.

Got a brand new set from HS after I called them. I installed them and 4 passes later the same issue. After I complained again they said they had some material issues and gave me another brand new set saying these were with newer and better material. I let them sit on the bench in my shop for the rest of the season without opening the box and went back to stock rockers with zero issues.

I sold them to a fellow CompD member. He gets the package and 2 out of the 12 weren't finished and anodized. These were clear shrink wrapped on a cardboard backing along with 4 other rockers that were anodized bright orange. I was blown away that someone would pack those up and send them out that way when it was so obvious they weren't finished. I felt like an idiot selling them to a fellow member as well.



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Knock the needle bearings out and install bronze bushings.
This for sure....if you are brave enough to run them.
 
Old 08-21-2017, 01:27 PM   #12
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This for sure....if you are brave enough to run them.
The ones I'm going to be running are not HS, I'm pretty comfortable with them holding up.
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Old 08-21-2017, 02:41 PM   #13
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Knock the needle bearings out and install bronze bushings.

Yes I had a set that weren't HS and they had a bronze bushing in them.
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