are the rings from honda pre-gapped for b16a blocks that are rebuilt to oem specs?

 

No, you have to check the gaps and file off a bit.

 

They are supposed to be, but at the least, you should check them.

If your bore is even a little bit too big (above the spec), the rings may not come into spec, even if you have the correct rings.

For example, the piston-to-cylinder wall clearance spec is .0006" to .0016". My clearance is .0020", to allow extra clearance without slap. My ring clearances came in slightly out of spec above the tolerance, which is just fine. The other option would have been to buy a set of aftermarket rings and manually set the clearances.


Modified by IN VTEC at 3:17 PM 9/10/2008

 

well its stock bore, and its the first time its been honed and it was just a light hone to achieve a nice surface. Im not new to engine building but ive never done an "oem rebuild". So basically it could come out slightly larger gapped than oem? Oh well i guess ill just see when i go to assemble the stuff.