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:

• 1970-2000 CHEVROLET 454 BIG BLOCK
• 1970-1975 CHEVROLET BEL AIR V8 7.4
• 1970-1972 CHEVROLET BISCAYNE V8 7.4
• 1973-1973 CHEVROLET BLAZER V8 7.4
• 1975-1980 CHEVROLET C10 V8 7.4
• 1973-1974 CHEVROLET C10 PICKUP V8 7.4
• 1973-1980 CHEVROLET C10 SUBURBAN V8 7.4
• 1990-1993 CHEVROLET C1500 V8 7.4
• 1975-1986 CHEVROLET C20 V8 7.4
• 1973-1974 CHEVROLET C20 PICKUP V8 7.4
• 1973-1986 CHEVROLET C20 SUBURBAN V8 7.4
• 1991-2000 CHEVROLET C2500 V8 7.4