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

[MarkBroviak]

We are running 5000+rpm and so I still think that a roller fulcrum is a good idea if you are trying to sustain these higher rpms. I'll make you a deal Cody, if you have a set in stock with stock ratio, I will be more than happy to put it in the motor we are engine dynoing in 3 weeks that is WELL over 1200hp/2200ftlbs and if we see an appreciable gain then we will be buying several sets. If they don't show a gain I want to return them. Can you make this happen. I think they are a good idea and I hope to prove it.

 

[Tony Burkhard]

We are running 5000+rpm and so I still think that a roller fulcrum is a good idea if you are trying to sustain these higher rpms. I'll make you a deal Cody, if you have a set in stock with stock ratio, I will be more than happy to put it in the motor we are engine dynoing in 3 weeks that is WELL over 1200hp/2200ftlbs and if we see an appreciable gain then we will be buying several sets. If they don't show a gain I want to return them. Can you make this happen. I think they are a good idea and I hope to prove it.

I dont want anything to do with a roller tip.... but a rollor bridge is what we want to try with the arms.

They prove themselves on this motor than they will be looking trick on billet heads....

 

[MarkBroviak]

I dont want anything to do with a roller tip.... but a rollor bridge is what we want to try with the arms.

They prove themselves on this motor than they will be looking trick on billet heads....

I agree Tony but the roller bridges with these are billet steel and we are currently running Billet Aluminum 1-piece with out issue and I don't want that extra weight. The guy at Harland/Sharp was really surprised when I brought this to his attention... I still want the shaft to be roller...

 

[Tony Burkhard]

I agree Tony but the roller bridges with these are billet steel and we are currently running Billet Aluminum 1-piece with out issue and I don't want that extra weight. The guy at Harland/Sharp was really surprised when I brought this to his attention... I still want the shaft to be roller...

Don't it have a roller in the pivot? The aluminum bridge your using is it rollor or does it have the pad?

 

[ripmf666]

price added back

 

[MarkBroviak]

One piece Aluminum coated no rollers and about 40% lighter than stock and have been running for a couple of years now without issue. Weight in the wrong areas rob power for no reason.

 

[sweetdiesel]

One piece Aluminum coated no rollers and about 40% lighter than stock and have been running for a couple of years now without issue. Weight in the wrong areas rob power for no reason.

Thanks for the info Mark


Appreciate you sharing the info

 

[Slammed2007Lbz]

Good Info. Mark! Thanks

 

[1slowmax]

Any more updates on these?

 

[juddski88]

they have been available for purchase for a while now, I talked to Zach Hamilton about them a few months ago and he said they really shine on the slower-opening cam profiles. The sharper the lobe profile, the less gain was seen switching to these from stock.

hope that helps.

 

[ripmf666]

Few sets sold nothing heard bad back about them. Just not a lot of guys wanting to drop that type of coin on these types of parts when stock works also.

 

[PACougar]

Few sets sold nothing heard bad back about them. Just not a lot of guys wanting to drop that type of coin on these types of parts when stock works also.

Especially considering I've yet to see comparisons from customers. If people were posting up before and after dyno sheets then it might help, or not.

 

[1slowmax]

Yea I haven't seen much. I was thinking of purchasing a set for my new motor but cant find much info.

 

[malibu795]

tagged for future finding

 

[1slowmax]

I was offered a deal to try a set. I was told I would see 15-60hp gains depending on my build and I was told stock trucks gain fuel mileage.

I might give them a whirl:rofl: