I have never seen anything other than a BMW motor mounted in a CS. There may be something out there, but I'm sure it will be rare. I would consider a CS along the lines of an E-type Jag as far as mounting a "lump" as a powerplant. Other Jags are converted often and I've seen other BMW's converted, but when you get to the more rare and classic models its not as popular. An LT1 motor would tear a CS chassis apart.