Installed in LS swapped rig. Perfect fit, however no overflow drain like factory setup, not sure if that will be a problem. Alisport Radiator, power steering reservoir and trans cooler next

 

It should have an overflow that is a pressure release mechanism, it stops hoses from blowing and reduces damage from overpressure incidents. It is possible the cap blows extra pressure out underneath but I would find out, even an LS can over heats and over pressure

 

There has been reports on quite a few LR forums here in England that V8 and Td5 Allisport coolant expansion tanks expanding due to excessive pressure and cracking at welds.
Too bad Carrs4x4 doesn’t fab them anymore.

 

interesting... thanks for the feedback... ill do some research