How much horsepower does Cummings 6.7 diesel have?

Calorific Value of diesel = 39,000 Kj/Liter

1 HP = 2685 Kj

Total calorific value of 6.7 liter diesel = 39,000x6.7 = 2,61,300 Kj

HP delivered = 2,61,300/2685 = 97.3 = 97.3x75 Kgf-m/sec