Hey I am a Caddy guy but I always wonder if the S type and LS are both DEW98 platform cars and the engines are very similar why has no one ever took the supercharged 4.2 and 6 speed auto out of a S type R and bolted it into a LS? Also I would think the 4.0 S/C out of a wrecked XJR or XKR would bolt right to the auto in a LS. I have seen the Mclaren cars and heard they were offering a 6 speed conversion and pushing out 350 hp but that is alot of freaking money and I would rather have a factory proven combo. I would buy one if it could be done it would be the sleeper of the century! And for you 3.0 V-6 5 speed guys Noble is getting almost 400 hp out of twin turbo 3.0L Duratec V-6's! :feed