turbo for a 273

Just kicking some ideas around (bench racing) ive got the o.e. HX35w off my 95 cummins 12v & wondering if I did the 60mm up grade to the compresser & got an exhaust housing for a 1st get cummins if it be enoph to work on a 273? The exhaust housing is 21 cm vs the 12cm thats on there now so it qould help the ol diesel spool. & run a good sized external wastgate. For an rpm limit of 5000 -5500 a 60mm would be close id think. Thoughts?