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Old 04-01-2005, 11:14 PM
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comp cams endure-x roller lifters

i'm just wondering if any of you have used the comp cams endure-x roller lifters. are they any good, or are they junk? thanks

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Old 04-01-2005, 11:18 PM
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For the price,.. They work great!! There are both junkier and better ones out there. It just all depends on how much you are willing to spend. All in all they work good and are resonably priced.
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Old 04-01-2005, 11:22 PM
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I have used them on the street runing a .700 lift cam and 625 open spring pressure. Lasted two years, which isn't too bad really. Ran the Crowers with the HIPPO option and those lasted less than a year. I now run Isky Red Zones which are one of the best in my opinion.
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Old 04-02-2005, 01:19 AM
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Your sayin the isky's will last longer runnin a solid roller on the street than the comp cams endure-x rollers? I have never attempted to run a solid roller in a street engine, but I was planning on trying it in the new engine. I've seen durability issues with them when my friends have run them on the street so any info would be good on this subject.
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Old 04-02-2005, 08:55 AM
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We ran the Isky lifters in a 525 Ford motor last year in the NMCA Extreme Street series for a complete season. Lots of test and tune as well throughout the season. This motor runs almost .900 lift, 1000 PSI spring pressure and 7500 RPM. On tear down this year the lifters were perfect. Which I thought was amazing given the hours on this motor.

I just converted to the Iskys this year after a winter tear down. So right now I only have 10 miles on them so no hard data in my application. We have though worked with Isky for many many years and in a street application with my setup they indicated I should see at least 15,000 to 20,000 miles out of the lifters prior to rebuild. Rebuild is the key. What really corked me off when I called Crower about the bad lifters was they do not offer a rebuild service on their lifters. Others I have talked with that run the Iskys have also raved about the reliability.

I got about 10K out of the Comp lifters before a few roller wheels started to sound like gravel. One roller though was totally shot and ready to spit it's guts out causing a knock which is why I tore it down for inspection. I should have caught it earlier as in hindsight it could tell the lash was not keeping spec like it should have. I got about half the miles out of the Crowers.

Schubeck also offers the ceramic roller lifter that is supposed to be the schnitz. Early reports are that they are very reliable as well as being very, very light. I can confirm the light weight as I have seen them up close. Up front cost is high (about $1000) but if life cycles work as claimed they would be the lowest cost option over the life of the motor. They were simply too new for me at the time I had the motor apart for me to feel comfortable using them. There are a lot of racers trying them this year so we should see some reports I suspect by mid season.

Last edited by Rick WI; 04-02-2005 at 09:00 AM.
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Old 04-02-2005, 06:58 PM
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After a lot of research and some sound advice from others, I've gone with the Isky Red Zones, they have pressure oil ports on each side of the roller providng continuous oil flow. Others I've seen have the grooved slot, which in my mind is ineffective. I know a member of this board had a solid roller of this design take his high dollar motor out when the needle bearings scattered in the engine.
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Old 04-02-2005, 07:20 PM
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I could see the $1000.00 ceramic rollers being a better way to go if they outlast the others and cost less in the long run. A $1000.00 dollars is rather steep up front investment. The new engine Im building for my street car only has a .630 lift and the ramps are slightly less aggressive than a conventional roller. This has allowed me to keep spring pressures on the low side so those Isky's sound like they'd last me awhile in this engine. Thanx for the good info

Doc
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