Oh, yeah, on the spark plug side of the '848 head it says B58 848 850, I read some where that the B58 is some kind of date code, would that make this head date February of 1958? Does anyone know what the 848 and 850 mean? The head on my engine now says B18 66 570, but the casting puts it at a 45 or 55, does that ruin my date code theory?
Thanks agian
-Alan
