Engine bearings

[onefast2gdsm]

I am replacing my bearings in my motor and I am looking at the ACL race tri metals. Does it really matter what company i go with? Clevite, ACL, store brand, etc, what are the differences, if any. Thanks.

 

[Talyn]

As long as you stick with something well known, you should be alright, my best advice, go look up magnus or buschur and see what they are using in their high hp crate motors.

 

[BogusSVO]

Is the car more of a track car? or more of a DD?

The race bearings are harder and can stand higher loads, but the trade off is the embedablity is not as much as a more common street bearing. With this being the case the crank can be scored up quicker.

Also keep in mind that race engines have much more fequent oil changes that keeps the debris out of the engine.

ACL, Cleivites, King, Topline are all good choices for a decent power street engine.

Topline bearings are made by King

 

[onefast2gdsm]

Its going to be a race engine, ocassionaly taken out on the street, but mostly for racing.

 

[2gtalonjem]

I am doing the same thing, I am replacing my whole rotating assembly. A local shop that I am using told me they use King bearings because they do not use copper in the middle. They told me that copper will squish and it will ruin the bearings. My car is going to be more of a DD so there should not be much abuse to it (I say that now, but when its running I'm sure I'm going to crank up the boost) so I think I am going to go with the ACL acuglides. Extremepsi.com has some good prices on them.

 

[onefast2gdsm]

Whats the difference between the full groove and half groove forbthe 6 bolt main bearings on acl aluglides?

 

[curt-s]

IIRC..

Full groove bearings have the oiling channel down the centerline of the bearing all the way around on both halves. Half groove only have the channel on one of the two bearings. This promotes oil to be supplied to both halves of the bearings.

Since our OEM cranks are crossdrilled from one side of the journal to the other, there will always be good supply of oil on both halves since one of the holes in the crank is always in a channel at any give time. However, certain cranks may be different or you may just want more oil being supplied than the crank can deliver by itself through a hole.

I'm a bit rusty but I think that's correct.

*edit* realized that "always" is a bit too strong of terminology on a dsm.

 

[pushen 160]

hey guys have some questions right now I'm running some kings just stock off this last rebuild. Now i'm going to switch my 20g to a wh1c with a 12cm now i want to change my bearings back to acl's and don't feel like ripen the motor out again any one done that. how hard is it. How and what is the best way to do that or should i just leave those kings in there and see what happens. any help thank you