I'm not sure the Spirit R/T and IROC Daytona engines are called Turbo II's. Those motors are all Mopar, intercooled and have 174 hp. I think they were first put into the Shelby Lancer in 1986, then into the GLH-S's in 1987. The 224 hp engine has a DSM head on it and is also intercooled and put into the Spirit R/T and IROC Daytonas. Can someone straighten me out if need be