A Chrysler K engine? A Turbo II isn't a 2.5L but rather a 2.2L. I don't believe they ever used the engine in a N-S RWD setup. The biggest hurdle would be to figure out of the Chrysler engine has a standard bellhousing. I don't believe it uses the same pattern as the AMC which is a GM 60* Bolt Pattern. I think performance wise, it's a marginal upgrade. You might as well go with a Chrysler 2.4L World Engine. You'll have to replace teh whole drivetrain but then you'll get a decent engine and can upgrade to a Merc 6-speed.