R53 Wiseco 77.5mm Piston Ring Set ZL1 and manufactured with a polished

and manufactured with a polished finish

Flows 250 Liters Per Hour

* German TUEV-tested lowering range

R53 JCW GP - only available in Gray or White

Specifically designed to resist the high temperatures of actuated (steel or carbon) racing brakes and clutch systems

R53 Wiseco 77.5mm Piston Ring Set ZL1 and manufactured with a polishedWiseco Pro Tru line of pistons utilize a plasma moly pre gapped ring set for the budget minded consumer. Wiseco Sport compact kits include the high quality NPR XX rings, which are the best quality steel nitrided top rings and napier style 2nd rings. Our late model EFI lineup and several small block Chevy pistons are designed around the our 1. 2mm Steel Nitride and napier GFX ring sets. Many of our big block sets utilize a . 043 back cut top ring for