What is the correct spark plug gap for a 1987 Chevy Nova?

The correct spark plug gap for a 1987 Chevy Nova depends entirely on the engine it has. There were several different engines offered in that model year. You must consult your owner's manual or a reliable repair manual specific to your Nova's engine to find the correct gap.

Without knowing the engine size (e.g., 2.0L, 2.5L, 2.8L, 3.1L, 3.8L, 4.3L, 5.0L, etc.), it's impossible to give you the correct information. The gap can vary from around 0.035 inches to 0.060 inches depending on the engine. Using the wrong gap can lead to misfires, poor performance, and engine damage.