Caltrain new Boise Locomotives

Any additional info regarding these three locos, numbered 920,921 and 922 will be appreciated. (Diesel engine type , electrical gear supplier and so on) They were sold too expensive to be overhauled locomotives as they seem.

http://www.caltrain.com/caltrain_locomotives.html

Former Amtrak F40PH type locomotives from the looks of it, and I believe they were in the 900 series when sold. Amtrak experts could tell you for sure.

They look like the F40PH-2C's that MBTA uses, Basically an F40PH-2 on a streteched frame to accomodate a separate cummins HEP motor. It was orignially an EMD design but I believe that Boise made several copies for a few commuter RR's.

I believe the Caltrain units have the gryalights (like the unit behind the first F40). Another spotting feature. (Im more than likely wrong though!)