Originally Posted by Thomaslb
When hot it now idles at about 15 psi and going down the road hot around 25 psi with 10 w30. Thank you for your help.
Are you sure the engine is truly fully warmed up? Because those numbers are great and wouldn't indicate a need for new main bearings, IMO.


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1952 Chevy 1/2-ton 3100
Late '55 235/SM420/torque tube 3.55
Dalton Highway survivor (using original 216)
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