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Severe Duty Roller Lifters ????

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Severe Duty Roller Lifters ????

Old 08-08-2009, 07:57 AM
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Originally Posted by MER Performance
Bob, can get you Morel or Isky, He knew about the bearingless bearing before anyone else did. He also did testing on the HI REV Hydraulic before it was ever released. We just set the record straight again on the HI REV Hydraulic, due to some bad information put out there on the Morel's. It's on a thread: HI REV HYDRAULICS LIFTERS & 20 w 50 oil. Better read it before you think all the problems are to blame on the lifters in the set-up of a valve train.
Thanks MER i will look for the thread and give Bob a call
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Old 08-11-2009, 09:36 AM
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Originally Posted by getrdunn
where is the best price on the morels?
thanks,
john
GS Products 717 838 4767
22 years at Crane
Master WD for Morel in stock

Recommend going .903" on any endurance type application or a .936"
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Old 08-11-2009, 10:01 AM
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Originally Posted by RunninHotRacing158
They have the new patented bearingless roller.mmmmm for high RPM ????? very interesting my dear watson ...
I am running these lifters in my engine in the Magnum. They are the solid roller lifter design. Drag racing guys use them over 900lbs spring pressure.

I didn't know they had come out with a hydralic design, but if they did, it would be awesome. You don't have to worry about bearing failure and little needle bearings dropping down into the engine.
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Old 08-11-2009, 10:04 AM
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I also ust used the Morel set up in an engine I just put into a customer boat. I have used about a dozens sets of them from Bob and havn't had any probems, but I don't spin engine that fast.
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Old 08-13-2009, 07:10 AM
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Originally Posted by jeff1000man
I am running these lifters in my engine in the Magnum. They are the solid roller lifter design. Drag racing guys use them over 900lbs spring pressure.

I didn't know they had come out with a hydralic design, but if they did, it would be awesome. You don't have to worry about bearing failure and little needle bearings dropping down into the engine.
Sounds great BIG Daddy , any experience with the new Crower 903 MAXIMUS lifters yet ?????? Cant open the website page thanks

Last edited by RunninHotRacing163.1; 08-13-2009 at 07:16 AM.
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Old 08-13-2009, 08:33 PM
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Originally Posted by RunninHotRacing158
Sounds great BIG Daddy , any experience with the new Crower 903 MAXIMUS lifters yet ?????? Cant open the website page thanks
I don't really research that much. If it works, why change it?

Get back to work on your project.
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Old 08-13-2009, 09:25 PM
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I hesitate to post this info, but the world has the right to know.
I believe I was Bob's first customer on the Isky Red Zone EZ wheeled solid lifters. They lasted 20hrs and destroyed 5 cam lobes. Isky rebuilt them for free! And changed the bearings in the wheels to a different design. But they didnt rebuild my engine that the lifters ruined. It was close to it's last bore and I hope I can salvage the block. It was blamed on my setup, but the Schubeck lifters didnt have a problem with my setup for 70hrs. If it was lofting as I was told, they would have exploded the glass wheels used on that lifter design. The bodies did crack on them. That is why I went to the Red Zones.. Hopefully with the R&D of destroying my motor I did for them, the new bearings hold up for all their future customers.
Mean while I am building a new motor. Going hydraulic this time.
Come to think of it, if they would have lasted, I may have been boating for the last two summers.. hmmm.. Oh well that is the way it goes with Boating!!
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Old 08-13-2009, 11:17 PM
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I got lucky and got the new design, with all seriousness, I feel your pain but thank you for the sacrifice.

Had you considered a REV kit to help stop the lofting?
.
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Old 08-13-2009, 11:26 PM
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Originally Posted by RunninHotRacing158
Severe Duty Roller LIFTERS ??

--------------------------------------------------------------------------------

SEVERE DUTY ROLLER LIFTERS in Big Block Chevy .... Pros & Cons ????
Morel or Crower ?????
whats workin best out there ???
__________________

Racing application, BBC, max RPM 7100, 260 seat 650 open, .710"-.725" nett lift, rev kit with Isky lifters, Isky and Morel with axle oiling, Dart BigM block, NO lifter sleeves,
40 hours per season,

Crower Severe Duty, (NOT HIPPO), 1 season - 4 x worn roller axles

Isky Red Zone, needle bearing, 1.75 seasons - 1 worn axle and broken link bar

Bullet branded Morel Ultra Pro, 1st race DNF, lifter seized in bore with .0015" clearance

Previous Isky Red Zone, needle bearing (with 1 new lifter and link bar) 1/2 season, 1 worn axle and broken link bar

Previous Bullet and 1pr new PBM branded Morel Ultra Pro, 1st race 55 miles DNF, lifter nipped in bore with .00175" clearance ( different cylinder this time)

Rebuilt Isky Red Zones with EZ-X and captive link bar, 1.5 seasons, no failure, removed and swapped for new lifters at cam change on dyno

New Isky Red Zone EZ-X and captive link bar, 10 minutes dyno and waiting to go racing

Note: the lifter bores have NOT been bushed or sleeved, only honed and cleaned up.
I sympathize with Mr Gadgets as I heard of early Isky EZ failures.

Last edited by SpeedMaster; 08-13-2009 at 11:29 PM. Reason: spelling
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Old 08-14-2009, 04:52 AM
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I considered a rev kit, but then another friend had the same issue and was told the wheel seized on the axle. I believe that was the problem in my case also. I never had any lofting with the Schubeck's. Although I did have higher spring pressures, and longer 7/16" push rods, and more cam than my friend that may have added to the problem. We'll see at the end of the season how his lifters work out.
At this point I opted to build a new motor, with more conventional setup, whimpy cam, liquid rollers and moderate spring psi. Hopefully I can get more than a few hours out of this new setup..
Years ago there was a head with rods in it that had holes thru it.. One in intake and exhaust ports.. no valve train. But I guess it didnt work out.. Now that would be slick. No more lifters to worry about.
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