Afternoon all, As some of you may be aware im building a caterham replica type thing with a cosworth YB in, im trying to tackle the cooling at the moment and im just after a bit of info of you experts! My question is on the back of the radiator what inlets/outlets do I need?(I need to get a one off rad made up) looking at pics on ebay there are 3 fittings.I would be very greatful for sizes of inlets and out lets and obviosly one is top rad hose one bottom but what is the other? and where do I get the feed from the bottom hose and where does it go after the top hose? Cheers in advance!

Dave