Yes, it can be done, but it's not easy or cheap, as I think the sensors are different, and I don't know if the ECU you have will work right. DOHC if you plan on doing a big turbo build-up. SOHC if you plan on staying NA, or maybe a light to medium FI build-up.Lue V said:okay know we know that doch is better with turbo. That's why i'm thinking about converting it. Now back to my question on can you convert soch to doch with the 2.5L?