ptross,
In most any issue of friction between a bearing surface and a journal one object must be "sacrificial". In other words, one part has to take the brunt of wear and 'sacrifice' itself away so that the other part isn't destroyed at the same rate. In common practice the Crank is a very expensive part to produce and therefore the bearings are made to sacrifice themselves and hopefully cost less to repair than the crank.
Babbitt alloys have been perfect for this sacrificial use for over 100 years. But babbitt alloys (there are over 20+ used in cars) are becoming a labor intensive and lost art.
My 1952 has the so-called "bypass" filter and you should see the high flow of oil to the filter canister when I crank the oil pump with a power drill. LOTS of oil!!! But the bypass doesnt work as good when the filter media starts to get dirtier , especially as a result of detergent oil. Non-detergent and a by-pass filter will work just fine IF you change the oil and filter very frequently.
Matter of fact, old car/truck motors seldom ran any filter till late 1940's and early 1950's and then only then as an option or aftermarket item.
A by-pass filter used with either insert or babbitt will be better than what was sent NEW from Chevy in most AD trucks!
FOR MORE INFORMATION TRY THIS GREAT SITE AND SIGN UP FOR THE CHAT FORUM!!:
VCCA CHEVY SITE
