Question about 379 with 6NZ? Can't find a 99 or lower model.

99 should be a 2ws. My 2000 that was built in dec of 99 had a 2ws in it. Anything is possible but it should be a 2ws. By 2001 they should all be 6nz afaik

 

I have a 6NZ in a 2000 KW. The build date of the engine is 12/23/99, and the vin is 04780 or something like that, so they were built at least a bit before then.

Edit to add: There must have been some overlap between 2WS and 6NZ.

 

There were a few 99 model 6NZ’s. There is always over lap between the serial number breaks. Really there doesn’t seem to be any rhyme or reason to what build gets what motor.



The 6NZ isn’t the end all be all that it’s hyped up to be. For all the updates to the front cover I sure have fixed plenty of them that were leaking. It’s no better than a 2WS in my opinion. An MBN can be made a good motor with programming and turbo changes. I wouldn’t pass on a 40 E model either the 1LW’s were as reliable as any