Absolutely none, so it's a good thing you grabbed them while you were thinking about it.
So the 6.1 like the 5.7 has been updated with the VVT. As mentioned before is the rest of the NEW 6.1 block the same as the old one except for the VVT and possibly some reinforcing of the block? Is the cam the same? I know the front of the cam is larger, But is the rest of the cam the same? I mentioned this in another post. Could it be possible to machine a bolt on spacer so the older camshaft would fit. This approach, if possible, would save Chrysler some money and possibly make them some. It would also help the grass roots racer. Matt
Matt
