I got a 2.5L petrol motor from a friend in excellent condition to replace my tired 2.25 in a Series 2. Does anyone know what i need to finish it off? I want to keep my Series gearbox though I do have the LT77 that came with the 2.5 from 1985 Defender. I assume I can use my 2.25 flywheel and clutch (though I will replace the disc at a minimum) so I can use the Series throw out bearing. I also think I can use the thermostat housing so I can use my Series radiator since the Defender radiator has a different hose position. I know I need to switch to an electric fuel pump as the 2.5 doesn't have a spot for a mechanical pump.

Are there other things I am not thinking about? I want to have everything as ready as possible to do the engine swap. The wisdom of the forum would be appreciated.