Original Ford bearings ??

[Newc]

Steel backed floaters! 48-6211 J-2 What size?? Found a full engine set [4] for the rods. Newc

 

[Kube]

Newc, are you certain about the J-2? Maybe JJ?
48-6211-JJ is crank .040" under, connecting rod, standard

 

[Bored&Stroked]

I can't find any reference to them. As noted by Kube - JJ is for .040 under on the crank. Usually when I see something weird like this it tends to be oversize on the rod bore. I'd mic them to find out.

 

[Kube]

I'd given this more thought and believe that -2, if it truly is 2 and not J, indicates a part that was changed, most likely composition.

 

[Bored&Stroked]

Also, did you say STEEL backed? If so, then I cannot see them as being used as full-floaters in rods . . . it would be steel on steel?

 

[Newc]

Saw a post about original bearings having a steel base, vs modern repros cracking thru a bronze base. Cracking between the rod surfaces ? Newc

 

[Bored&Stroked]

Saw a post about original bearings having a steel base, vs modern repros cracking thru a bronze base. Cracking between the rod surfaces ? Newc

They might be steel on the inside - with bearing material plated on top, but definitely not steel on any of the bearing surfaces.

Note: This is how most bearings are made for all autos.