Originally Posted by Cab_Burge
50 RA is pretty smooth, almost as smooth as glass scope
:


Not in my world! Technically its 50 microinches RA. In my world 50 microinches RA is only somewhat smooth, but its all relative to what you are doing. Sleeve (babbitt) bearings generally want a 16 - 32 microinches RA finish. 16 is getting pretty smooth.

Last edited by markz528; 09/26/20 01:00 PM.

67 Coronet 500 9.610 @ 139.20 mph
67 Coronet 500 (street car) 14.82 @ 94 mph
69 GTX (clone) - build in progress......