fatherdoug
Tonto Papadapolous
It is a filter for the heater core. I guess if you have chunks that big, the heater core is the least of your worries, but it might be helpful?
http://www.dearbornclassics.com/filter-heater-core-gano-5-8-ford-and-mercury-1957-1979.html
http://www.dearbornclassics.com/filter-heater-core-gano-5-8-ford-and-mercury-1957-1979.html