Upgrade your engine's performance with this Hastings MOLY Top Piston Ring Set, designed for compatibility with 1970–1980 Chevy SBC 400 engines. This set features precision-engineered ring widths of 5/64" for the top ring, 5/64" for the second ring, and 3/16" for the oil ring, ensuring a reliable and consistent seal for optimal engine compression and oil control. The moly coating on the top ring helps reduce friction and wear, contributing to improved engine longevity and performance. Available in multiple sizes to suit your specific needs — simply select the correct size from the drop-down menu before adding to your cart, as only available sizes are shown. Whether you're rebuilding a classic engine or performing a routine overhaul, this piston ring set delivers the quality and fitment you need to get the job done right. Please verify your engine specifications and required ring size before ordering to ensure proper fitment.