Hastings "Tough Guy" Racing Standard Piston Ring Set - Bore Size: 3.810" Top Ring: 1/16", Second Ring: 1/16", Oil Ring: 3/16" - Oil Ring Tension: Standard 11111121 requiring a completely different formulation

requiring a completely different formulation of grease

Sprint Cars

289 and 302 Small Block

351C-400M and 429-460 provide quicker response and better performance

Hastings "Tough Guy" Racing Standard Piston Ring Set - Bore Size: 3.810" Top Ring: 1/16", Second Ring: 1/16", Oil Ring: 3/16" - Oil Ring Tension: Standard 11111121 requiring a completely different formulationHastings racing piston rings deliver race winning performance in even the most extreme applications. The low tension, low friction design provides unsurpassed combustion seating and exceptional sealing. Each set includes plasma moly, high tensile cast iron top rings; reverse twist, taper faced cast iron second rings, and choice of standard or low tension Flex Vent stainless steel oil control rings. Low tension oil rings make significant increases in