you can get 2 types of UN54 113mm bottom bracked, an e-type and a normal.

Any one know if the e-type BB’s have a longer thread on the drive side than none e-type?

yes they do

Thanks

Martin..

er.. no they don’t. the last 3-4mm or so by the flange is un-threaded and the drive side flange is offset to the right by about the same amount.

Sorry, I meant that the drive side threaded cup is deeper…

no worries.. I’m being pedantic anyway!
You can bodge-fit an e-type bb using a HT2 spacer (preferably an ally one), but they have a tendency to work themselves loose.