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Upgrade your engine's performance with the HASTINGS 2C523125 piston ring set designed for 3.937-inch diameter pistons. 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 with a PVD coating, which enhances heat transfer between the piston and cylinder wall, helping to maintain proper operating temperatures and prevent overheating. These rings control combustion gases effectively, transferring energy from the expanding gases to the crankshaft for smooth power delivery. The second compression rings are Napier-style with a reverse twist and taper-machined face, promoting side sealing that minimizes oil consumption by preventing oil from passing under and behind the ring. This design contributes to improved oil economy and reduces emissions. The oil control rings are three-piece Flex Vent types, engineered with steel rails and expanders for better conformability to the bore. Their small cross-sectional area ensures a tight fit, providing consistent pressure and superior oil control to keep the engine clean and well-lubricated. Made in the USA, this set includes enough rings for two pistons, with two rings per groove and two rail rings per expander ring, offering a reliable and durable solution for engine rebuilds or repairs. Whether restoring an older engine or enhancing performance, these piston rings deliver quality and consistency for optimal engine health and longevity.
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