NV4500 question

Ive over hauled a lot of NV4500 gear box's (nice & easy tranny to work on!) that have all been ( & going back behind) healthy cummins engines for friends of mine. Ive honestly never seen one behind a smallblock yet. & the V-10 shares the same bell as the mighty cummins. Also don't expect to shift this tranny lightning fast eather! there brick s%$@ house when done rite though.