Wiseco 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 extra material thickness around the intake valve.

Unless Noted – Rings Sold Individually – Order Specific Quantity Needed

Application:

• 1983-1996 FORD F-150 V8 5.8 w/ 351 Windsor Motor
• 1983-1997 FORD F-350 V8 5.8 w/ 351 Windsor Motor
• 1969-1969 FORD MUSTANG V8 5.8 w/ 351 Windsor Motor
• 1968-1971 OLDSMOBILE 442 7.5
• 1968-1976 OLDSMOBILE 455 BIG BLOCK
• 1968-1976 OLDSMOBILE 98 7.5
• 1970-1976 OLDSMOBILE CUSTOM CRUISER V8 7.5
• 1968-1976 OLDSMOBILE CUTLASS V8 7.5
• 1975-1976 OLDSMOBILE CUTLASS SALON 7.5
• 1971-1976 OLDSMOBILE CUTLASS SUPREME V8 7.5
• 1968-1968 OLDSMOBILE DELMONT 88 7.5
• 1968-1976 OLDSMOBILE DELTA 88 7.5