I ran .0035+ rod and main bearing clearances on my old 518 pump gas stroker motor, it would idle at 18 to 25 lbs at 650 RPM with 5W20Wt oil at 180F + oil temps, 30 lbs at 1200 RPM, 65 lbs at 6500 RPM shruggy work
Your fine with .0035 clearnces on the rods thumbs twocents I had to use the King rod bearings on the B1 motor I built last year to get the clearances oI wanted,(.0025+ to .0030) every other brand was to tight work If your going to use a motor with 2.200 rod journal sizes and want to safely rev it up past 5500 RPM reguraly your way better off with .0030+ bearing clearances, no matter what weight oil, than having .0020 oil clearances up twocents

Last edited by Cab_Burge; 05/04/16 09:41 PM.
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)