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Ol' Ron · 09-05-2014, 01:54 PM

The 49/53 engines have lock in bearings, the same as most other engines. The pre 49 Ford engines all had floating bearings. This bearing does pt lock into the rod or anything else. It just floats between the rod and crank. These older bearings were mad from cadmium and silver in some cases. Heavy duty bearings were mad from a bronze alloy. These bearings MUST be fit to the crank. New replacement bearings are not of the same quality. Also NOS bearings have a tendency to flake from old age. so a good full flow oil filter is a plus for longevity. I cover this in my book.

09-05-2014, 01:54 PM	#10
Ol' Ron Senior Member Join Date: May 2010 Location: Chester Vt Posts: 8,855	Re: 59 AB engine rebuild The 49/53 engines have lock in bearings, the same as most other engines. The pre 49 Ford engines all had floating bearings. This bearing does pt lock into the rod or anything else. It just floats between the rod and crank. These older bearings were mad from cadmium and silver in some cases. Heavy duty bearings were mad from a bronze alloy. These bearings MUST be fit to the crank. New replacement bearings are not of the same quality. Also NOS bearings have a tendency to flake from old age. so a good full flow oil filter is a plus for longevity. I cover this in my book.