What years engine will fit in a 03 s-10?

The 2003 Chevrolet S-10 can accommodate engines from several model years, particularly those from 1994 to 2004. Compatible engines include the 2.2L I4, 4.3L V6, and potentially the 5.3L V8 from the later models, depending on modifications. Always ensure that the engine mounts, wiring harness, and ECU are compatible for a successful swap.