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Old 01-23-2008, 05:07 PM
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Solid Roller Lifters For Street - Do They Require Direct Oiling?

Hi Guys

I'm getting closer to buying a solid roller cam setup for my Hot Street BBC situation. I've got a few leads going - nothing final yet. Very frustrating.

I've got one guy with a good reputation recommending a set of lifters for me that DO NOT HAVE DIRECT FED OILING. You've probably seen the Comp Cams, Crower and others that have a hole in the lifter body that takes pressurized oil from the lifter bores and directs it to the needle bearings such that even in low rpm street situation the bearings are always getting direct fed oil. The ones he's recommending are from Doug Herbert Performance and they are part number "HERTBV" for BBC. See this website:

http://www.dougherbert.com/liftersme...page=4&sort=4a

has anybody ever used those? What is/was your experience with them? They are HALF THE PRICE of competitors solid roller lifters. They are only $200 for all 8 pairs. Sounds to good to be true.


Question: MUST I USED DIRECT FED LIFTERS FOR THE STREET? or are the TBV series and others similar to that ok to use for the street?


Lee

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Old 01-23-2008, 05:46 PM
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The experience I have done with solid roller motors since the mid 90's says no. the pressure feed lube has not helped. Keeping them lashed correctly does.

As for the Herbert lifters, never used them. We use Comp and Isky.

I just installed the rollerless bearing Isky Redzones in my engine this past fall. Next fall will know if this new bearing style has merit, at least in my application.
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Old 01-23-2008, 10:03 PM
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I have about 2500 miles on the Doug Herbert solid rollers and cam in my 496, so far so good. Have been using Mobil 1 15w 40 since the motor was first started.

Larry
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Old 01-24-2008, 09:01 AM
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Use only Isky lifters. Call Isky and ask them. I think it depends on spring pressure.
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Old 01-24-2008, 11:30 AM
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I have run standard Comp and Crane on the street with 550 to 600 open pressures and never had a failure. I just kept a close eye on lash and spring pressures.
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Old 01-24-2008, 11:40 AM
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I have a set of Bullet Racing/Ultradyne Solid Rollers in my 496, they have held up just fine, I ran them for 1 summer probably 1000 miles, but with break in, tuning, and things there is obviously a lot more time on them then the 1000 miles would indicate. I took them out in the fall and they still looked/functioned like they were brand new.

All I did to help was smooth out the casting in the lifter valley, then remove the casting flash and opened up the slots above the cam so that the oil could run down from the heads and onto the cam more easily. Also I used a high volume pump (low pressure). It works beautifully.


This picture shows the enlarged oil slots and you can see how the oil runs pretty much right onto the rollers. I smoothed the casting later when I completely dissassembled it (long story).
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Last edited by Double_v23; 01-24-2008 at 11:47 AM.
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Old 01-24-2008, 05:05 PM
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Quote:
Originally Posted by lmsport
I think it depends on spring pressure.
Nope, even on camshafts we run with 900+ over the nose, the Isky doesn't last any longer than a standard Comp lifter. Three years of running that motor worth of data.
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Old 01-26-2008, 11:26 AM
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The only engines I build anymore are for oval racing, generally 8500rpm and 750lbs. Isky makes the only lifter that I have NOT seen fail while in service. I replace them after a prescribed number of laps. Some engines do get the keyway lifters from Jesel.

I would not run CompCam in any engine.
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