thought they might of been but wasnt 100% sure, my mate converted a corsa to a 16 turbo with a nova gte engine prepared by courtney and he used the shafts from the nova, just wondering whether it was ok! cheers mate!
It's safer to get your Corsa bearing knuckles machined to accept Astra hubs, than to get the Astra hubs machined to fit the Corsa bearing (this will weaken the hub!!).
I think all big block gearbox CVs/hubs are all the same size. The usual bearing size on the big block cv wheel bearings is 72mm outer diametre, 39mm inner. Harry Hockley do Group A wheel bearings for the Nova (probably the same for the Corsa) for about £22+vat each. These will accept the big block CVs, but have a smaller outer diametre (68mm). This would mean you wouldn't have to machine as much metal off the Corsa bearing knuckle to fit the bearing, so it would be even safer.