i cant find any info on these heads. everything i have seen reads from D0OE to D2OE, but no D1's. these heads are also marked with a '351' and an 'X'. anyone have any info???
Apparently off of a 71 Torino/Fairlane. Havent really found much yet regarding valve/chamber size. I'll keep digging.
In that pic they look a little fuzzy with rust. I would venture a guess that they will need to be gone through completely and unless you get them really cheap they probably wont be worth the effort or expense.
The W heads were all big valve and small chamber from 69 to 75. The C9s had ever so slightly smaller chambers. Other than that, they all had the largest valves and ports available. C9 chambers were ~58cc, the rest were 60cc. The later ones have internal smog plumbing... doesn't really matter though. Same heads. They rival aftermarket heads when ported properly. Just taking out the huge solid lump in the exhaust port is supposed to be good for 30 hp. No other mods.
These were not only used on Fairlanes and Torinos. They were used on a 351W cars. The "O" in the Engineering prefix denotes what vehicle line the engineering costs were assigned to, not the actual vehicle that they went into
It's a common mistake, no sweat. Ford frequently interchanged parts among the various vehicle lines. So there's no way to know what vehicle any particular part came from, unless you pulled it yourself from an unmolested vehicle.