DJ-3293 +.030(.75mm) Over Honda Rings GX390

HONDA Original Parts  .030(.75mm) Over size   GX390

* *  OEM Honda  * *   13013-ZIC-800 piston rings are .030" (.75mm) over standard size and can be used with oversized pistons, OR as file-fit rings for +.020" pistons.  Pack includes 2 oil rails and an expander ring, a scraper ring with a lower chamfer on the outside diameter and a chrome-faced compression ring with upper chamfer on the inside diameter. 88.75mm bore 2mm top ring 2mm 2nd ring 2.7mm 3rd ring.
 ! ! LOOK CLOSE ! !
The chamfers on these rings, especially the one on the compression ring, make these rings superior to anything else available for these engines.  This compression chamfer is VERY important as it utilizes the combustion pressure to force the compression ring into the cylinder wall giving the best possible seal.  This is a necessity to get higher performance out of long-lasting chrome-faced rings.  "Gas ported" pistons seek to achieve the same goal.