Roller rockers for a 91?
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From: Buies Creek, NC
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From: Vancouver island
I dont see much point for them as we only rev our piles to 3500 rpms (most of us anyways) I would think the cummins makes enough torque to overcome the friction of the rocker arms to the pushrods/valve stems.
As far as not for street use, that seems kind of weird. Maybe its an oiling thing?
As far as not for street use, that seems kind of weird. Maybe its an oiling thing?
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Joined: Sep 2008
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From: Vancouver, BC
Hamilton Diesel had them made by harland sharp iirc. I inquired about them and was told they weren't for street use. I don't see why not since some factory cars have roller rockers.
I believe it would be an oiling thing as well. Good point big stinky, I can't see much benefit if they are being revved to ~3500rpm.
Just like everything else if it is for a diesel it will cost 5 times as much as a gas version.
I believe it would be an oiling thing as well. Good point big stinky, I can't see much benefit if they are being revved to ~3500rpm.
Just like everything else if it is for a diesel it will cost 5 times as much as a gas version.
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From: Auburn, Washington
dont come in here much but just happened apon this site the other day.
there kinda spendy.
http://www.enterpriseengine.com/user...G%20COMPONENTS
there kinda spendy.
http://www.enterpriseengine.com/user...G%20COMPONENTS
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From: San Jose Ca.
I dont see much point for them as we only rev our piles to 3500 rpms (most of us anyways) I would think the cummins makes enough torque to overcome the friction of the rocker arms to the pushrods/valve stems.
As far as not for street use, that seems kind of weird. Maybe its an oiling thing?
As far as not for street use, that seems kind of weird. Maybe its an oiling thing?
And like was said earlier... WHY? the ONLY reason I could see a use on a street driven truck is if they had a higher ratio ava. and even then, I wouldnt run them.
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From: New Holland, PA
if they are Aluminum, they eventually fail. same reason you don't run Aluminum rods in a street car. (I know, I know, there is always the story of the guy with a hundred thousand miles on Aluminum rods, but I aint buying it)
And like was said earlier... WHY? the ONLY reason I could see a use on a street driven truck is if they had a higher ratio ava. and even then, I wouldnt run them.
And like was said earlier... WHY? the ONLY reason I could see a use on a street driven truck is if they had a higher ratio ava. and even then, I wouldnt run them.
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From: Watkins,IA
I'm trying to rebuild my 91 and the rockers are a little worn, just wondering if roller rockers are the way to go? Seeing that I have it apart, just thought now would be the time to ask. Good to know about the non street thing though. Dose anyone have them on a puller/drag truck? I'm not going to put thousands of miles on the truck but reliabillity is still a factor. As far as the price, dose anyone know if they are the same as any other gas motor?
Thanks for all the input, keep it up. Woody
Thanks for all the input, keep it up. Woody
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From: Vancouver island
if they are Aluminum, they eventually fail. same reason you don't run Aluminum rods in a street car. (I know, I know, there is always the story of the guy with a hundred thousand miles on Aluminum rods, but I aint buying it)
And like was said earlier... WHY? the ONLY reason I could see a use on a street driven truck is if they had a higher ratio ava. and even then, I wouldnt run them.
And like was said earlier... WHY? the ONLY reason I could see a use on a street driven truck is if they had a higher ratio ava. and even then, I wouldnt run them.
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