Had base seals leaking so I pulled them off and figured I would do rings at the same time. Pistons are stamped Revolution Performance 321-001-14-12, 7643F, for the life of me I can't find any information about these pistons. Also should I even be reinstalling it in this condition? Any help would be greatly appreciated

 

The pistons are likely made by Wiseco but you can got to revolution performance also.. Are the cylinders nikasil?

https://millennium-technologies.com/...onperformance/

 

BTW, they look to have the narrow 2mm oil control ring.. I'd replace those pistons.. What is the bore size? 2.937"?

 

3.937

 

yes nikasil

 

Oops Typo..

 

Turns out pistons have been discontinued no rings available. Had to buy upgraded pistons.

 

Figures that the pistons would need replace with the 2mm oil control rings. They were known to have issues that could damage the cylinders.