Looking to get a new set of rings for the wiseco K541M815 pistons. Anyone know were to order just a new ring set? Also the machine shop thought something was wrong with the pistons since the wrist pins were so tight he said these are supposed to be able to move and are just held in with the clips. I was like Idk. I got this pistons used. Any ideas

 

Call Wiseco Directly. They will sell you the rings based on the part number you listed.

 

anyone know about the wrist pins?

 

I pushed them right out with my index finger upon removing the locks, I kept them on the pistons to keep them matched up with the proper piston, maybe they just need a little oil.....

 

haha ok bro you said these are 8.9-1 correct?

 

They are Wiseco's low comp piston, the CR varies depending on your head and/or block being milled, gasket thickness and what head it is (GSR or B16), I think Wiseco rates them from 8.7 to 9.0 I cant remember.