95 Camaro smells hot

I have a 95 Camaro v6 340L with 110K miles.
upon starting the car and running for as little as 1/2 mile, the car smells hot. When checking under the hood there is smoke or steam coming from the engine block.
I recently (with the forums advice) replaced the thermostat and coolant.(Thanks for that advice, it fixed the problem). I have also had problems with oil pressure and have had that check by a mechanic at Firestone, they suggested adding Lucas oil in which I did and that may have corrected that problem.
Any ideas?