I just got done looking up hoses by application (B or C body 440 cars with or without AC) on Rock Auto (for Dayco numbers) then went to the Dayco site to check and cross reference dimensions. Go to www.accessdayco.com . "Part Interchange" and "Part Lookup" were invaluable. However, the images on the Dayco site are often distorted. Then I bought an assortment of hoses locally to test for the best fit.

Anyway, that upper looks like 70539. 70492 or 70592 might work for the lower.