Just be advised that if you are contemplating removing a 216 and replacing it with a later (full pressure) 235, it is *not* a form/fit replacement. There are some mods that need to be done in order for the 235's to fit without butchery of the radiator shrouds. Check out our Tech Tips for more info on this.
Not hard (I did it

), but still something to keep in mind.
V/R
John