Ball python enclosure sizes

Hi All

My ball python is getting pretty large and i wanna upgrade his enclosure.
He is currently in a enclosure that is 600 long x 500 wide x 450 high and i wanna upgrade to an enclosure that is 1100 x 500 x 450
Is this to BIG????
and if so what size should i go for
Any help would be great

Thanks

I am guessing that this is millimeters?

If so the cage you have him in is about 2'x20"x17"
and you want to move up to a 4'?

How big is the snake?

sorry i am in South Africa forgot about the whole conversion into inch's thing
Ye the measurements are in millimeters

Tokyo is about 70 cm not sure about his weight but he is heathy and eats like a demon

So he is about 27" inches long if my math is correct, I think the 2' cage should be ok