223 camshaft question

cars2cool

New member
When did Ford change the #3 cam bearing from grooved to cross drilled? Or was it cross drilled to grooved? My thinking is grooved is a better design because the oil can flow without the risk of restriction or chance of blockage if the cross drilled holes should get plugged up with sludge or filings.
 
:unsure: I used to know when they did but am drawing a blank this morning. I believe Ford went from the cross drilled to groved in the later model 223's for ease of manufacturing. Good luck :nod:
 
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