What engine can you put in a 1994 Nissan 4x4 pickup 4 cylinder?

You can replace the engine in a 1994 Nissan 4x4 pickup with a few options, including the original KA24E 2.4-liter inline-four engine, which is the stock option. Additionally, some enthusiasts may opt for the SR20DE engine from the Nissan Silvia for better performance, or even an upgrade to a V6 engine like the VG33E. Make sure to consider compatibility with the transmission and other components when choosing a replacement engine.