[Rcparker2]

The block measures perfectly, this is not a question that will be answered with a torque plate. It is a matter of surface finish, not out of round

Only a profimeter can tell you anything in regards to that. You need to look at the Vk to see it it has enough oil retention for your application

 

[Rcparker2]

Don't need a meter to tell that needs redone.

I agree, point it you can't really tell anything by looks. A lot of people think they have a great hone job by the looks and we are dealing with microns.

 

[Rcparker2]

I have been honing blocks for years, I don't need a meter to seal a engine. If you have a quality machine it takes care of the work for you.

It takes good equipment but with the new coatings and ultra thin rings it gets very specific on the finish. I recently went from a diamond rough/ diamond finish to a diamond/cbn combo. The naked eye can't tell the difference bet the finish is much better when I measured it. Seems no to have as much rpk.

 

[Rcparker2]

You'd be surprised what you can get away with, and I can achieve the same thing with my abrasive stones.... Recently did one with .9 .9 .2mm ring pack... Rvk was 100
Rpk was 15... Bitch made a lot of power, no smoke.... Shit ton of vacuum....
That profilometer is a pain in the ass. Never get the same reading twice even in the same spot not moved.

Stones can do a great job, actually cut better than diamond. They just wear easier and require more work. Before cbn roughing with diamond and finishing with stone was the hot setup, may still for some.

 

[Rcparker2]

first block I did with cbn finish. Had to take a .0005" after my wife's 6.4 hemi lost a cam