It's rated at 170 hp and 255 ft-lb.
The 1989 Chevrolet Caprice became a standard benchmark for police car units in the United States. Its 350 cubic inch V8 engine delivers 190 horsepower.
Around 195-200
190 horse 350 tbi was available in the 9c1 caprice.
http://en.wikipedia.org/wiki/Chevrolet_Small-Block_engine jr
A 1977 caprice was using the same 267cid engine as the impala at the time, wikipedia says it had around 170hp.
The 4.3 v8 (L99) in the 94-96 Caprice's made about 200 hp and 245 ft. lbs. torque.
I believe all 96 Caprice came with a lt1 engine. So if it the lt1, the stock hp would be 260. Same exact engine that is in the Impala SS for 94 95 96.
280
260
200
Around 150
230 hp. 300 ft/lbs