My son is an engineer for CAT in the engine controls division. I quizzed him over the weekend on engine sizes and he said the largest they offer is 550HP. He did say that they can go to 700HP with the current configurations, but most of those engines go in marine applications and heavy haulers. He said he could program an engine to be whatever you want it to be, but won't promise how long it will last or what the emissions would be. ;-)
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