I own a 1999 ls400 and have a crack all the way down #7 cylinder. I used aluminum brazing rod to seal it but am unsure how thats going to work.
because of this i searched for options for an engine block near me and i found one and paid for it. Havemt picked it up yet but am wondering if a 1995 1uzfe block will fit my 1999 ls400
Thank you

 

The main bearings are different, older had studs/nuts newer just bolts. Or maybe I have that reversed either way there was a change. Will the block work for you? Probably, only one way to find out.

 

Does 1995 block employ oil passages for the VVTi system?

Turn the negative into a positive..go with a 3UZ-FE engine. Plug and play.

 

1UZ engines from model year 97 and older are non-VVTi so they will certainly lack the oil galleys for the VVTi system...however i'm not 100% if the older model year block would not work on the 99.

are oil passages differ only at the heads? if so then you can theoretically swap over your VVTi heads.

 

Put in an 01-03 ls430 3uz. You won't regret it!