Clevite 77 engine bearings [Merged 3-8]

[TommyDSM]

I'd doubt they actually have the P's in either. I'll bet they give you the AL's which are aluminum. Clevite switched from Tri Metals to aluminum some time ago and its very very hard to find any P's anymore.

I picked up some Clevite Rod Bearings CP1120P's from Autozone. And they did say 1120P.

But I decided to just pick up some ACL Mains and Rods instead.

 

[project_tsi]

I picked up some Clevite Rod Bearings CP1120P's from Autozone. And they did say 1120P.

Thats awesome. Go back and buy every Clevite P series bearing they have. The P Clevites are some of the best bearings for the 4g63's. Save em, or post em up for sale and make a few bucks.

 

[GVR4592]

The tri metal main bearings are still very easy to get, the rod bearings are the one's that are hard to find. Summit has a ton of the tri-metal main bearings in stock.

 

[TommyDSM]

Thats awesome. Go back and buy every Clevite P series bearing they have. The P Clevites are some of the best bearings for the 4g63's. Save em, or post em up for sale and make a few bucks.

Hahaha yeah they did have another 3 boxes

 

[TommyDSM]

The tri metal main bearings are still very easy to get, the rod bearings are the one's that are hard to find. Summit has a ton of the tri-metal main bearings in stock.

Yeah they are pretty expensive from them... Autozone seems tobe the cheapest but I would have to wait acouple days to order them... Instead I bought ACL which should be here Friday I hope

 

[GVR4592]

I've been told that the bearings that Autozone carries aren't actually made by Clevite, they're made by NDC. They're still a tri-metal bearing they're just made by a Japanese company and thrown in a Clevite box. I have no idea what the quality of these bearings are compared to a "regular" Clevite bearing. They will have NDC stamped on them. The Clevites I bought from Summit have Clevite stamped on them.

 

[bigjdog84]

Clevite is very shady with packaging bearings. Sometimes you'll get a box with high-tech bearings, Al's in a CP box, Cp's in an AL box, etc.
I've found that a few autozone's around me have the AL box and there are always CP stamped bearings in them.
I've also have seen many damaged bearings, be it FM, clevite, acl, etc. So its a good idea to just open them all up, inspect and take what you want

 

[92eagleTSI]

I'm not sure what's going on in this thread ### i just ordered tri metal clevites for my rods from advance. They also carry the aluminum clevites. I just thought i'de bring this thing back from the dead and add my .02.

 

[92eagleTSI]

Disregard that first post the dumbass at advance told me they were the tri metal clevites when i ordered them but when i went to pick them up they weren't, i even gave him the number that i got off of their website. They don't even show them in their computer at the store. It wouldn't be the first time that they screwed me nor the last, it's actually a fun game now to see if i'll actually get what i order.

 

[jawar666]

I've been reading through old threads because I still haven't set my mind in what bearings should I go with for my 7 bolt engine...

I was almost sure about going for some ACL Race Series Bearings for both (Rods and Main)... Clevite was not a choice anymore because in most of the threads I found here, it says that Clevite was not doing their bearings in tri-metal anymore, just alluminum...

However, after looking for prices in the different sites... Looks like Clevite is back manufacturing their bearings in tri-metal... or am I wrong?

Take a look at these links for example:

http://store.summitracing.com/partdetail.asp?part=CLE-CB1643P&autoview=sku

http://motorheadheaven.com/it_crankinstall.asp
(read at the bottom)


So... my question is... Are Clevite 77 bearings made from tri metal again?

 

[luvmygst]

When I put my 7 bolt together the only tri metal bearings I could find were Top Line and they came from India. Took the machine shop about a week to find a supplier though.

 

[99gst_racer]

So... my question is... Are Clevite 77 bearings made from tri metal again?

Clevite made a running change to the 6-bolt bearings, not the 7-bolts bearings. They now only offer the AL bearings for 6-bolts. They still offer the tri-metal "P" bearing for the 7-bolts though. I'm not sure of their reasoning with this, but this is how it is.

I just rebuilt my 7-bolt a couple weeks ago, and it got the Clevite CB1643P rod bearings.

 

[jawar666]

Thank you very much for sharing that info 99gst_racer...

In that case... I think I'm going to get Clevite for my 7-bolt...

 

[hedrick]

After searching for related info I decided to post my question. I ordered a set of Clevite 77 main and rod bearings from extremepsi.com recently. The part number for the main bearing set is MS-2076P. I checked clevites web publication as this is the correct part for my 91 6bolt swap. My question is in the factory service manual it says to install the main bearing with the oil groves into the block and the main bearings without the oil groves into the bearing caps. The clevite bearing set I recieved does not have an oil grove like the OE bearing do. Should I use the clevite bearings or the OE bearing? Thanks for the help.

here is a picture of the clevite bearings
<a href="http://s155.photobucket.com/albums/s285/hedricm/?action=view&current=CIMG1836.jpg" target="_blank"><img src="http://i155.photobucket.com/albums/s285/hedricm/CIMG1836.jpg" border="0" alt="6bolt bearings"></a>

 

[cruisintalonawd]

So the other 4 dont have the holes??? I'd be send them back or call extremepsi tomarrow morning you need the hols for lube

 

[NN4S]

He's saying the Clevite's don't have an oiling groove in the top (block side) bearing; they would have an oiling hole even if they don't have the groove.

You can add the groove yourself (with a Dremel tool, but don't forget to properly deburr your work) or go without; it's your call. If you don't want to use them and don't feel comfortable grooving them yourself, contact your vendor & discuss it with them. Personally, I'd prefer a grooved bearing that tapers the depth of the groove (deepest at top, tapering to no groove at about 1/4" from the ends) but I don't believe anyone sells one that way. I'd have to set up a jig of some sort to ensure consistancy between bearings, but it would improve flow to the bearings if done correctly. Even if you don't add a groove along the rotational axis, you should consider adding a groove across the #3 main to provide better oiling to the thrust surfaces of that bearing (once again, deburr your work).

 

[Daveed]

There's two types. I ended up with both by accident. One has the full groove on both sides and the other only has the groove on one side (the crank is crossdrilled so you don't need the upper groove...its sortof a tossup between more bearing surface and more oil flow. If you got ones without ANY grooves on either half then yah, call extreme psi and ask them whats up with that. I've never heard of ones missing all of the groove.

 

[hedrick]

Ok after calling roadraceengineering I talked with their engine builder and he recommends using either OEM main and rod bearings or ACL since they come from the same manufacturer. He says that clevite 77 main and rod bearings are not recommended even for a daily driver with less than 20psi of boost. He also said when I ordered the bearings from extremepsi they are going to sell whatever they have despite me asking about the ACL bearings. As a result im going to send back the clevite main and rod bearings and ask for the ACL bearings.

Just an update for anyone interested. NAPA carries ACL main and rod bearings for a good price. Most NAPA employees dont know where to look so find someone who knows the system well.

 

[jrcramer1]

i put clevite in all my motors and nothing but. i think they are great. while you have your bearings out you should see about them getting coated which means you have to get an over size bearing. the size will make up when it gets coated.

 

[92awddsm]

Now that clevite bearings are aluminum and no longer tri metal, I wouldnt use them in anything. I have been using acl for the past few years and have not had a single failure.

 

[foxsdesignz]

i was looking at some bearings for my car, what is better,, clevite 77..tri-metal or aluminum, what should i run, i plan on running eagle rods and maybe stock replacement pistons,,is there any different in the two beside metals or is the aluminum for aluminum rods....

 

[delta448]

Aluminum are cheaper for a reason. They work great at lower stress levels, but if you want reliability at higher power levels use a tri-metal. Also, I believe I heard that the Clevite tri-metals are using a new design and are not near as good quality as the old 77's they used to make. The general consensus is that ACL Race bearings are the new top dog.

 

[livedsm4g63]

What makes ACL the new top dog?

 

[99gst_racer]

FYI: Clevite's 6-bolt rod bearings are an aluminum bearing, not tri-metal bearing like they used to be. Like delta448 stated, it's not a performance bearing anymore, and it was a running change, so there is no option.

And all of Clevite's tri-metal bearings are still true 3-layer bearings (moly/graphite + babbitt + cast copper/lead). The AL's are a Bi-metal (two-layer) bearing.

 

[delta448]

What other choices are you comparing? I was only comparing Clevite and ACL.