How can you tell if an older jeep six is a 258 or a 232?

Answer 1

To determine if an older Jeep six-cylinder engine is a 258 or a 232, check the engine's displacement. The 258 has a bore of 3.75 inches and a stroke of 3.88 inches, while the 232 has a bore of 3.63 inches and a stroke of 3.88 inches. You can also look for the engine identification number, typically located on the block, which will provide specific details about the engine type. Additionally, the 258 engine is generally found in later models, so the vehicle's year can also be a helpful clue.