97 w900b C10 to c15 or 3406E engine swap HELP

ok long story short my 1997 Kw W900B with cat C-10 dropped a valve. I'm not going to replace the c10 I want to put a C15 or 3406E in the place

I need to know what will have to be done to make it work. I know the c15 is longer so i know the rear motor mounts will have to be moved back along with clutch linkage,exhaust,& get the drive shaft cut what else?

Is is worth it to do the engine swap?

truck has a 8LL with ds404 rears 4.11 ratio

any help would be nice I've been down 3 weeks I need to get back to work

 

It's a tandem dump truck. Sand & gravel hauler Truck is in very good shape. Plus it's paid for. I've got a $10k. I want to get the most for the money. I will be doing all the work my self.

 

I've got the tools to do the job. I'm thinking about buying a complete truck kenworth mid to late 90's and do the swap. I have me eye on a couple of truck in the $6000 range with recent inframe 3406E. I have been told as long as I swap to a cat engine the wiring will work. Mine is a 40 pin ECM. I know I can buy a 40 to 70 pin wiring harness for $300.

 

I think the only way to make it work is to buy a complete truck around the same year. What years were the best 3406e what serial numbers do iI need to look for