D5C threw a rod. does cat 3046 = mitsubishi s6s?

Hi. I recently purchased a late 90's D5C dozer with a blown motor ( appears to have thrown a rod). It is equipped with a 3046 turbo diesel which is rated at 95 fwhp. A little hunting around on the net leads me to believe the engine is made by mitsubishi and is the same as the mitsubishi S6S. In fact the cat motor has S6S-D cast into the head. I have access to a running S6S from a cat forklift. The lift motor is a naturally aspirated version rated at 120hp. Seems strange to me that the NA version would make more power than the turbo, but this is all new to me. My question has several parts. Firstly is the 3046 cat a re-branded S6S. Second are the long blocks the same, and can I just bolt the cat turbo, manifold, pump etc to the NA S6S forklift motor? My other option is a used cat 3046 turbo from a smaller machine rated at 85hp. It needs a turbo, but runs well apart from that. I know for a fact the bore and stroke is the same on all 3 engines. if I use this long block with my pump and turbo etc. , will the engine's power be sufficient. Which of the two options would you recommend? I thought about a fresh rebuild, but due to the window in the block, I dont have a decent core. Any suggestions would be appreciated.



P.s. I know its poor etiquette to have your first post be a question. ... but hey... i need help. So sorry in advance.

D5C threw a rod. does cat 3046 = mitsubishi s6s?