new motor

[LynnJr]

Dubok
Torque is king in any truck so if you already have all the parts a 350 would make good sense.
That said if your crank needs grinding go 383 and never look back.You can get a new crank for pennies more than grinding your original crank and You can feel the difference very easily in the seat of your pants.
I have a 90 GMC K1500 and put a 400 smallblock in it out of a station wagon while my engine was at the machine shop being rebuilt.
The old 98,000 mile 400 was a much better motor than my brand new 350.
If you are running the factory TBI you can't put much of a cam in your 350 at all so cubic inches are your best most reliable friend.
Lynn