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Upgrade your engine's performance with the HASTINGS 2M4805 piston ring set designed for 3.750-inch bore Twin Cam engines. This comprehensive kit includes top compression rings, second compression rings, and oil control rings, ensuring optimal sealing and efficient operation. The top compression rings feature a barrel face that facilitates heat transfer between the piston and cylinder wall, critical for maintaining proper operating temperatures and preventing overheating during intense engine use. These rings also help control combustion chamber gases, transferring the expanding force to the crankshaft and contributing to smooth, reliable power delivery. The second compression rings are Napier-style with a reverse twist and taper-machined face, which promotes side sealing to prevent oil from leaking under the rings and enhances oil economy. The oil control rings are a durable three-piece flex vent design, with steel rails and expanders that conform well to the bore, providing uniform pressure and superior oil control. Made in the USA, this set is engineered for durability and precision, offering quality that meets or exceeds OEM standards. The kit includes enough rings for two pistons, with two rings per groove except for the oil rails, which have two rail rings per one expander. Designed to optimize engine efficiency and longevity, these piston rings are an ideal choice for performance enthusiasts and professional rebuilds alike.
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