The 10k specs still have the same hp and tq as below 10K, Ford just took the snapshot of the hp and tq curves at lower rpm, thus the lower rating. (ie 6.2 will produce 316 hp at 3,000 rpm and 385 at 4,000 rpm) This I assume is due to some stupid EPA regulations, simmilar to what they do to diesel hp and tq ratings in a cab and chassis truck. But I understand with a diesel they actually have less hp and tq, not the window dressing that is done with a gasser.
This forum is owned and operated by Internet Brands, Inc., a Delaware corporation. It is not authorized or endorsed by the Ford Motor Company and is not affiliated with the Ford Motor Company or its related companies in any way. Ford® is a registered trademark of the Ford Motor Company.