I have two L61 crankshafts with the exact same part numbers. One crankshaft has bevelled oil holes on the journals and the other does not. Is there any performance benefit or lose to the oil holes bevelled or not?
Crank without bevelled oil holes:
Crank with bevelled oil holes:
The beveling is supposed to help distribute the oil onto the journals better. A lot of people get the beveled holes done when they get the crank freshened up for a rebuild.
yea thats called "chamferring". and like brian said, it helps aid in oil distribution to the bearings. its a common thing to do for a rebuild of an engine....
It's nice to be injected but I love being blown.
