Cat C16 block running C15 (6nz) turbo and ECU

okay - sorry thought it would have come up. i new to this.
will be getting the build receipt friday so it should help understand it better.
thanks

 

hi there - yeah sorry i am from australia

 

down under it is mate

 

Hi guys,
I received a report from CAT today after paying to a roadworthy to be completed on it and the below is storey.
The remanned engine from cat a has C16 components and pistons. this was completed at 900klm (1.44m miles) the engine was supplied with a no serial number stamped but was tagged as a 6NZ.
The engine was then fitted with the standard 6nz blots on's
the engine then started pushing water out of front. Cat couldn't identify why it was happening therefore a In-Chassis rebuild was completed at 1.76 klm ( 2.88m miles). with no pistons and liners.
It currently runs the C15 turbo and flash file.
the engine has now done 35000 klm (56000 miles) since the rebuild and is producing a oil leak at a gasket on the water pump housing. its only very slight. Cat said its of no concern at present. but I would love to know your thoughts and if its something to worry about?

I also would like to changed the turbo on it to a C16 turbo and updated the flash file from 6nz to the c16 file.
do you think this would hurt the engine? if not what can I increase the Hp to and would suggest using a CAT turbo or a no wastegate aftermarket turbo?

this is my first truck and I might be being over cautious, but I don't want buy a dud and have to have any major problems start of the bat.

thanks

 

Hey mate, what would you suggest?