Engine bearings

[Raptor]

I want to get everyones preferences for engine bearing manufacturer and style. I have been doing a lot of research on this lately and now I believe I have found the best bearings available for our over boosted toys. So what bearings do you like and why?

[Matt D.]

I like the ones that work. *shrug* Anyone and everyone I know has always used Clevite.

[Jakey]

Mike which bearings do you run in the engines you build? I know Federal Mogul makes 4G63 bearings besides Mitsu & Clevite but have yet to read about anyone running them.

[Raptor]

Not us, not anymore. We have found two bearing manufacturers that destroy the clevites for quality and are similar in price. I no longer will use clevites because I don't like the fact that I have had to spend a half hour on "adjusting" them to get them to satisfactory condition before using them. Each set I was getting for a while there was getting progressively worse.

The ACL's are a much nicer bearing for finish and they seem to maintain tighter tolerances during manufacturing. I have another manufacturer's bearing set being sent now as well so I can verify what I have read and seen with them. The material is not the typical tri-metal, the tolerances are claimed to be tighter than anyones and they are the top supplier of bearings to top fuel applications. They are said to work equally well in long duration high RPM use as well as the DD's. I will have examples of all of them at the shop soon so anyone interested can compare. These are the bearings we will be running in Curtis's 2.14 if they are even close to what they sound. I will tell the manufacturers name after I see a few more responses, I am doing a bit of a blind test to see if anyone suggests them without me saying what they are.

[niterydr]

Not us, not anymore. We have found two bearing manufacturers that destroy the clevites for quality and are similar in price. I no longer will use clevites because I don't like the fact that I have had to spend a half hour on "adjusting" them to get them to satisfactory condition before using them. Each set I was getting for a while there was getting progressively worse.

The ACL's are a much nicer bearing for finish and they seem to maintain tighter tolerances during manufacturing. I have another manufacturer's bearing set being sent now as well so I can verify what I have read and seen with them. The material is not the typical tri-metal, the tolerances are claimed to be tighter than anyones and they are the top supplier of bearings to top fuel applications. They are said to work equally well in long duration high RPM use as well as the DD's. I will have examples of all of them at the shop soon so anyone interested can compare. These are the bearings we will be running in Curtis's 2.14 if they are even close to what they sound. I will tell the manufacturers name after I see a few more responses, I am doing a bit of a blind test to see if anyone suggests them without me saying what they are.
I guess im not allowed to guess?

[Raptor]

No your not, and actually, it isn't about guessing which bearings I am talking about. I want to hear what people are using and recommending, if someone mentions the ones I am referring to from their own research or use, that would just be good info.

[Shane@DBPerformance]

I only use muffler bearings.

[Jakey]

Well I have worked with IR Torrington (owned by Timken) bearings quite a bit at school and have no problems with them.

[Raptor]

I only use muffler bearings.

That may be too advanced of an answer for this thread ;)

[MustGoFaster]

I have heard of King('s?) bearings before, but I am not using them. They were not the standard Tri-metal setup so they maybe what you are talking about.