Did ls1 come in 1984 Corvette?

No, the LS1 engine did not come in the 1984 Corvette. The 1984 Corvette was equipped with the L83 engine, a 5.7-liter V8 that produced 205 horsepower. The LS1 engine, which is a 5.7-liter V8 as well, was introduced later in the 1997 Corvette C5 model.