quick update
picked up one of the intercoolers last week, cleaned it all out on Friday (fair amount of oil and rubbish in there!) and left it standing full of water over the weekend as at the time I couldn't find any suitable pipe to cap the ends and pressure test it......
Came back into work this morning to find that the intercooler still had all the water in it!

Found some suitable pipe this morning so hoping to pressure test it this afternoon
All being well I'll be fitting it tomorrow..............although its currently sat on a radiator drying out
