I may have to drain a quart. I put in 5 1/2 qts to take into account the oil filter. So the dip stick reads full. The 53 Truck Manual says 5 qts, but nothing about the filter. Guessing 5 qts only. So your dipstick would read a little low. Since I have a 54 Passenger car motor, I would guess the same.
I think you'll be fine.
Run the engine to get the oil filter filled up then check it cold. Dipstick should read full and filter will have about 1 quart in it. 6 qts total.