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The cam shaft in my 351... what do the markings mean?
I have a 351 in my house (it is really my cousins, not mine), that was rebuilt before it was purchased. The cam shaft has markings on the timing chain end that are 'HO' (or 'OH' if it is upsidedown, I prefer 'HO' for obvious reasons) and '242A'
Does anyone know what these markings mean? I do not know the settings on the cam but they will be measured in the near future.
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