So i have a 1999 LS400, and my radiator has a small leak,
and i was looking for an aluminium radiator, but i cannot
seem to find any online, but there is no shortage of GS400
aluminium radiators. Seeing as the LS400 and GS400 share
the same engine, would a GS400 radiator work in my LS400?
Would the mounts be the same? Thanks for your help!

 

no, won't drop right in at all. Will need some custom work to fit properly.

 

Are you talking about an ALL aluminum radiator without the plastic top and bottom or just in general? Because just about all the radiators for these available will have aluminum cores