thrust bearing trick

[turbochargedgnx]

is this a thing to do OR NOT....FILE A GROVE IN THE BEARING TO ALOW DIRECT OIL TO THE THRUST SURFICE....but it could lower oil pressure it says.see pic and link......hop it works

http://www.aera.org/Tech/tb1465r.htm

 

[steve h]

It shouldn't affect oil pressure enough to notice unless you get really caried away. Something else you can do that in my opinion is better is to drill a small hole ,1/16" through the rear thrust face of the bearing and block into the oil fead hole for the bearing. Chamfer the hole in the bearing a little with a small center drill. We have done this for years on big block chevys and a few turbo buicks. I also do this on the front of the block on the thrust face for the cam.