Piston & sleeve from my Sportworks 21 V2...

Exhaust side



Intake side



Transfer ports (other side is identical)



I believe this engine was described as a 6 port engine. I counted 7. Do you not count the exhaust? Or is the bridged intake counted as 1? Maybe some of you guys can educate me.

Incidentally, I've been running this engine for over a year now. I recently had it pinched and when I took it apart today I noticed some slop in the rod bushing. Is it worth trying to replace the rod or should I call it a day on this motor? I've got the dynamite coming and another Sportworks just like this one on hand already.