I guess we can agree to disagree on the thermodynamic characteristics of two similar but different structures and the harmonic distortion which takes place above a certain RPM in every reciprocating assembly.. Except that it isn't worth the $13 one would save by not installing one. If you didn't know you might need it you probably don't
The thing is, I have seen perfectly fine bronze bushings fail more often than I care to think about because it often times is subtle and manifests itself as a "gear" problem or a "synchro" problem, only to be "fixed" (for $$$) and have the same thing happen again.
The point is mute if you drive like a sane person or cannot or would not exceed 6,000 rpm with an FE (what sane person would).
In any case whether you are insane or merely would like to be the following part numbers will get you where you need to be.
FE Pilot Bearings can be had from:
BCA (Bearing Corporation of America #303SS
SKF of Germany #6303-2RS1/C3GJN
Napa Auto Parts #6303-2RSJ
I would like to thank Mark with Dynamic Motorsports (513) 738-4000.. He knew the BCA number off the top of his head. From there the cross reference was easy.. None of the parts books had a reference by application. He did remind me that FT steel cranks were of course .505" in depth, not .565" like the other FE steel cranks and you will likely need a specially constructed piece for that crank (also off the top of his head)
