Summary
Hastings Premium Ductile Moly Tough Guy rings include top rings made of proprietary shell-mold, ductile high-tensile strength premium cast iron. They are coated with plasma moly impact-resistant alloy.
TOP LAND: 1/16" - Ductile Iron, Plasma Moly Coated
2nd LAND: 1/16" - Cast Iron
OIL RING LAND: 3/16" - Flex-Vent Bore: 4.155"
The advantages of ductile iron are: Stronger and more resilient that gray iron Can withstand higher operating temps than gray iron Visually unbreakable upon installation or under extreme stress Great for High Performance and Turbo-Charged applications
