Harland Sharp Roller Rocker Arms 6.6L Duramax Application: 01-12 GM 6.6L Duramax

ripmf666

ripmf666

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Sep 20, 2006
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Duramax-Rockers.jpg



$1,800.00 shipped in the Continental US
Harland Sharp D-Force Roller Rocker Arms are manufactured in-house out of 2024 Billet Aluminum to ensure maximum strength and durability for your Duramax valvetrain. The D-Force roller rocker arms also feature a roller tip for superior friction reduction and increased performance. For use in racing applications, and with no required modifications, the D-Force roller rocker arms from Harland Sharp truly are the simplest way of maximizing your diesel engines valvetrain performance!









Features:
  • Made from 2024 billet aluminum
  • Roller tip for friction reduction
  • Installs in place of factory rocker arms
  • Sold as a complete set
 
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Leadfoot

Leadfoot

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Dec 27, 2006
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Unless I'm blind or stupid (could be both), I don't see a "roller tip".

I see the fulcrum is roller, but the tip looks to be a hardened pad with a groove behind it for lubrication...?

The D-Force roller rocker arms also feature a roller tip for superior friction reduction
 
ripmf666

ripmf666

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Sep 20, 2006
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New pic added they had the wrong pics up. Also I will add the price back later when I find out what the price is 100%.
 
S

S Phinney

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Aug 15, 2008
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Those won't be a problem. Only problem right now is that the are not available for the lb7. There is a clearance issue associated with the return lines. All other models are good to go.

Sent from my DROID RAZR using Tapatalk
 
MarkBroviak

MarkBroviak

DMax Junkie
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May 25, 2008
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No valve adjustment... Did I miss something here? These are alittle pricy, was looking to test them on the engine dyno but not really sure it would be worth it yet and I don't have that much coin laying around for a maybe increase in power. Look good but needs to have a roller fulcrum for the price.
 
codyn

codyn

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MarkBroviak said:
No valve adjustment... Did I miss something here? These are alittle pricy, was looking to test them on the engine dyno but not really sure it would be worth it yet and I don't have that much coin laying around for a maybe increase in power. Look good but needs to have a roller fulcrum for the price.
Click to expand...

The reason for the no valve adjustment in the photo was ratio was not selected yet. There will be a power increase but it will depends on other engine mods are done . On a stock lly duramax we saw a 15rwhp on the dyno from just the rocker swap. Roller fulcrum is not needed on low rpm motors.
 
sweetdiesel

sweetdiesel

That's better
Aug 6, 2006
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codyn said:
The reason for the no valve adjustment in the photo was ratio was not selected yet. There will be a power increase but it will depends on other engine mods are done . On a stock lly duramax we saw a 15rwhp on the dyno from just the rocker swap. Roller fulcrum is not needed on low rpm motors.
Click to expand...

What ratio are they? How are you involed in this Cody?
What is the price Henry ?
 
codyn

codyn

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sweetdiesel said:
What ratio are they? How are you involed in this Cody?
What is the price Henry ?
Click to expand...

On the stock lly they are stock ratio Exhaust 1.69:1, Intake 1.36:1. I did testing for the past year and half or so and did the dyno testing on the stock truck with stock ratio rockers and the built motor testing with the ratio set of rockers.
 
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Colt

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Jul 23, 2010
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HP costs are not feasable for me to pay that for 15 HP. Nice stuff but that's for money crowd who race or want it all I guess. No offense but after labor 2 HP per hole ain't in it.
 
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