Coolant level?

First off, sorry for all the questions?

Replaced my radiator, single row, which has the plastic vertical tanks on both sides.

The Chilton book says it should hold 3 gallons of 50/50, but I?m only able to squeeze in about 1 1/3 gallons through the top of the radiator, (not the overflow reservoir).

Should I be filling one side through the upper hose connection, and then the other side the regular way?

Again, many thanks!

Does your system have a burp valve? That’ll be a valve located somewhere in one of the coolant lines at the high point of the system that allows entrapped air to be released.

3 gallons probably includes the coolant inside the engine. Did you completely drain the engine?