![]() Can anyone help?Īs for the head, a 240 should have an "A" stamped under the thermostat housing mounting surface. The first part of the numbers seem to indicate that the casting is from 1969, which matches, but I can't seem to narrow it any further to a 240 or 300. I haven't had much luck decoding the casting number. This site seems to indicate that the 240 and 300 have the same bore size, but the stroke length makes the difference. At 4", he seemed pretty sure that my motor is a 300 and not a 240. He measured the bore size on the head and found it to be 4". I showed him the original paperwork and we both scratched our heads. The second clue that something was off came when I delivered the head to the machine shop today and the owner asked me if I was sure it wasn't a 300. I've seen posts about them being interchangeable. I have to believe that he never swapped out the motor for a bigger one.Īn odd part of this has come up over the past few days as I've started to do some rebuilding is that Damper Doctor told me my damper decoded as being from a 300. The whole van is pretty original, including the paint. The build sheet and sales form show the truck shipped with a 240. ZIKF19_HFGįor me, this one is a bit interesting as it's in a 1970 Econoline that has been passed down from my grandfather. The casting number (if I'm reading it right) is C9AE-6015-B. I'm hoping you can help me identify an engine.
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