Number one cylinder on a 1983 Datsun pickup?

On a 1983 Datsun pickup, the number one cylinder is typically located at the front of the engine, closest to the radiator. For most Datsun engines, including the L-series, the cylinder numbering follows a standard where the cylinders are numbered from front to back on the driver's side first, then the passenger side. This means that cylinder one is the first cylinder on the driver's side. Always refer to the specific engine manual for detailed information about your particular model.