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I would have searched on this topic "because I know it has been beat to death"..... But I did not know what to type in the search feature . My question is where can I find the head and block cast numbers for my truck. The truck is an 83' f-250 w/ a 460..
The block number should be by the starter & is difficult to see. It is likely a D9TE. The head numbers are (usually) directly over the third exhaust port from the left, right under the rocker cover flange. I have "heard" (so take it with a big ol' grain of salt, as my daddy used to say) that some of the early '80s heads had the casting #s under the cover (i.e. by the springs, etc.), rather than over the port, but I've never seen it myself.
there was some of the mid 80s heads that didn't have a casting number on them at all, you might have some of those. For all intents and purposes they are the same as the D3VE heads.
And apparently there are D7 & D8 castings that are functionally identical to the D3s as well. The '80s stuff I've found so far (not a huge amount, a dozen or so) has all been D3VE, or EFI, a whole 'nother animal.
Kermmy, in the interest of historical accuracy, you need to pull & disassemble the entire engine, preferably tonight. We'll expect a full report by morning.