Fitting/Hose sizes on oil cooler?

[Bill Lattimer <m22@skypoint.com>]

I had the bad luck to break one of the fittings on the oil cooler in my '70
'B.  I'm pretty sure I can get this welded up, but because of time pressure
(racing season's coming!), I'm going to replace it.  I'd like to replace the
rubber lines with Aeroquip and put an oil cooler thermostat in, but I don't
know the size/type of the connectors on the oil filter, block and cooler.
Anyone know these?

Thanks!

Bill Lattimer
1970 MGB
#30 DSP