It sounds like it's time to drop the oil pan off and take a shim out of the rods to close up the oil clearance a little. Use some Plastigage and try for 2 thousandths or slightly less clearance.
Jerry


"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!