Got a 1983 Chevett that was in storage for the last 11 months. What should I check before starting the engine

I wouldn't bother changing any fluids yet. I would however check the tires and all fluid levels including oil, transmission, rear end, power steering, radiator, battery, and clutch if it has a hydraulic clutch...I don't think so but the 1982 &1984 Corvette did. I'm not sure about the Chevette. Look for a separate reservoir on the firewall near the brake reservoir. Check brake pedal for response. Don't press hard. You may break a seal.

A few drops of lightweight oil in each cylinder wouldn't be a bad idea to free up the piston rings. Let it sit overnight.

The fuel might be bad. Open the gas filler and smell for a varnish smell. If you smell varnish...stop. The fuel must be removed. Have the car towed to a shop that's willing to drain and clean the tank.

No varnish smell? Start the car in an open area and let it idle. The brakes have to be tested next. Drive slowly a few feet and tap brakes to make sure they are operable.

If the Chevette runs okay, put on some plates, change the fluids, check all lights and flashers, fill the tank with gas, wash the windows and drive away.

There were no Corvettes in 1983...82 yes and 84 yes, but not 1983. For the engine, I would inject Marvel Oil in the cylinders through the spark plug holes. It would also be a good idea to spin the oil pump with a attachment on an electric drill to circulate oil throughout the engine. On most engines, the oil pump can be reached with the distributor removed. You will need an attachment for the drill. Then drain and replenish all of the fluids on the Corvette and change the tires. Oh yes, drain the fuel tank before starting the engine and put some fresh gasoline in the tank...Important!

If it has only been 11 months, all that might be needed is to be sure all fluid levels are o k. Check battery water level (if the cap type) and bring up to full charge. May have to add fresh gas (gets stale after sitting for a year) or a couple shots of starter fluid in the carb air intake. If stick shift, before starting, put shift in low or reverse and rock back and forth to loosen the movement of the pistons. Do not over rev on starting. Check the brake operation, air the tires and enjoy a low speed drive around the block to loose up the car.

About the only thing you should need to check is the basics such as the fluids, belts and hoses. You may need to check for blockages from animals and dirt dobbers if it was stored outside. Other than that, try to start it and double check that everything seems to be ok such as no overheating or other problems.

Your wallet.