The S10 is a popular small pickup truck that can be found on the roads all over America. It has been around since the early 1980s and continues to be a reliable vehicle for many drivers. As with any older model car or truck, it may eventually need some repairs and/or replacements of parts due to wear and tear. One of the most common engine swaps for an S10 is a Chevy LS series V8 engine, which provides more power than the stock 4-cylinder engine. Other engines commonly swapped into an S10 include GM's 5.3L Gen III Vortec V8, Ford's 4.6L Modular V8, Dodge's 5.9L Magnum V8, Jeep’s 4.0L I6, Pontiac’s 3.4L Twin Cam V6, as well as several other imports like Subaru’s EJ25 flat-four and Honda’s B20 VTEC inline-four cylinder engines from their Civic lineups respectively . Swapping in these larger and more powerful engines will require additional modifications such as custom wiring harnesses and ECU programming but can yield great performance gains for your ride!