First, just for clarity, it the R2.8, not the ISF 2.8. Two different engines.
The specs/pricing will be released in May. They are indeed working on the final EPA stuff. There are two Land Rover places that have beta engines but I am not sure who they are--the folks at Cummins are checking with them to see if they are cool with them releasing that info. I am planning on the swap with the LS as my back up in case things either get ridiculously delayed or too darn expensive. I know folks at Cummins Rocky Mountain and it isn't released to even them yet. But I am excited.
RE: Colorado and the 300/TD5. I can't do either. The State now truly inspects the engine swaps, particularly like me going from petrol to diesel. I have to tell them which US sold truck the engine came out of or provide them with the EPA documentation showing certification in the US. (the other requirements are the engine has to be newer than the truck, it has to be the same weight class (ie no 6BT swaps which is a "heavy weight" class, and all emissions equipment from donor vehicle and all applicable sensors must also be used.
I plan to do a full write up of my swap including making engine mounts and everything to help other enthusiasts. If you are one of the shops already doing this, please share! I am working on getting the requirements of the intercooler (charged air they call it) as well as the hose dimensions so we can be prepared for that.
The LS is an awesome engine. It is on the table still for me, but I frankly would prefer the diesel. Sure, I could quote data points like mileage, but they are rather irrelevant--it is a decision made more by want than by logic.
The engine swap will be 50 state legal for vehicles 1999 and older.
There was a torque/horsepower graph of the R2.8 at one time and it was taken down. Does anyone still have that?