The answer is a qualified "Yes", a 350 Chevy starter will work. Do a search (Chevy Starter) in General Turbo Buick Tech, tons of info there on the specific ones that work best. I've been using the LT4 Corvette starter for years with no problems. It's lightweight, gear reduction for good torque and lacks a nose cone that could break if the engine backfires.
HTH - Jimmy