Well, I was pressing in the cam bearings on the 3.4 today and got stuck.

I think the box was packaged backwards, but am unsure. When I pressed the bearings out, the bearing with two holes was in the rear (could swear), but the package is labeling it as #1. The two center bearings are identical, then there are two the same diameter - one with two holes, the other with one.

Does anybody have a stripped block they could look at and tell me, or know off hand? I can take apart the 3.1 to make sure, but that's a lot of work if someone could share the info.

 

I don't know if it would be the same but when i did my 2.8 rebuild the one with the 2 holes is the second center bearing . If you go from the front end of the engine its the 3rd bearing. Hope that info helps.

 

Definately not on the 3.4. The two center bearings have the same sized outside diameter. The two outside ones have a larger outside diameter so that you can fit the bearing through it to be pressed in.

I think I may have found the answer. The bearing with two holes has a notch leading to the outside edge. This is to allow oil to lube the timing set, hence, the two-holed bearing needs to be in the front.

 

IIRC that would be correct.

Didn't want to use SBC bearings and have a wider oil surface?

 

I JUST found that out!!! For $15, I might just pull them back out, and go with the SBC's.

 

LOL!