Does this number mean anything to someone, 7D28 it is not a ford truck question but the number/code is on the heads of a friends boat engine. One head is cracked between the valves. Looking for a place to purchase new head or heads. Need both to be the same. Any help would be greatlly appreciated.

Nick

 

Actual date of casting.

April 28 of a year ending in 7.

1967,77,87,or 97

 

Dennis

Thanks for the info

Nick