Introducing the Total Seal "CR" Classic Race Series Piston Ring Set for V8 engines, engineered for the ultimate performance. Designed with a bore size of 4.030 + 5 and featuring precision file fitment, these rings are plasma-moly coated with ductile iron top rings, ensuring maximum durability and efficiency. Complemented by a standard cast iron second ring and a 3-piece stainless steel oil control ring, this set guarantees optimal sealing and performance. Ideal for street use, race applications, and accommodating mild levels of nitrous or forced induction, this piston ring set is your go-to choice for excellence.