You can bead blast it with glass or poly beads, a lot less destructive than sand. You can also soda blast them, too.
Early 50's Studebaker trucks used the 224 ci OHV V-8, while the cars used a 232. (Drop the 232 crank into the 224 and you get a very high-reving 202!) Later on, the engine was bumped up to 259ci, then later the 289 (not Ford) and finally in the 63-64 years 304ci in the Supercharged R-3 and N/A R-4 found in the Avanti, some Hawk models and the Super Lark. The R-1 was a hi-po 289 and R-2 a supercharged 289. We had a '63 R-1 Lark 2-door that was a screamer among the 30+ Studebakers my dad had out on our farm. Some were in storage, like our '36 Dictator Sedan that was a 90+ point car at Hershey, our '55 President Sedan and the '63 Avanti R-4, as well as the Lark. The '60 Champ pickup had three on the tree with an electric Borg-Warner O/D unit behind a '64 R-1 dropped into it to replace the 259 it came with. That was one hauing/towing pickup! We also had a restored Champion Starlight Coupe "corn picker" that was a real eye-grabber. Then there were the various parts mules and future projects that were parked in the small pasture next to the 44'x60' Morton building that housed the show and restored cars. Oh, and the '53 Champion Lowey coupe that we bought as a Studillac (Studebaker with a Caddy V-8 dropped into it with the 3 speed O/D behind it, a very popular gearhead conversion in the 50's that gave you the fastest top speed car on the road) that we put an 81 Mazda 4 banger and 5 speed into, replaced the hood and front fenders with fiberglas reproductions, the turned dash out of a '63 Hawk (bolts right in) and had a 25 City/34 Hiway daily driver that turned a lot of heads.
In the 50's Edelbrock (among others) made a three duece intake manifold for the Studebaker V-8 engine series. If you engine is missing its heads, they all interchange from displacement and year with each other.