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Upgrade your engine's performance with the HASTINGS 2C523225 piston ring set designed for 4.000-inch bore engines with a +.010-inch gap. This comprehensive set includes top compression rings, second compression rings, and oil control rings, ensuring a complete sealing solution for optimal power and efficiency. The top compression rings feature a barrel face coated using the advanced Physical Vapor Deposition (PVD) process, which enhances heat transfer between the piston and cylinder wall, reducing thermal stress and promoting durability. Proper heat dissipation is critical for maintaining engine reliability under demanding conditions. The design helps control combustion gases, transferring the energy from expanding gases to the crankshaft efficiently, which can lead to improved engine power and responsiveness. The second compression rings are Napier type with a reverse twist and taper-machined face, mimicking the bottom scraping edge of a positive twist torsional ring. This configuration promotes side sealing, preventing oil from being forced under or behind the ring, thus improving oil economy and reducing emissions. The oil control rings are three-piece Flex Vent design, allowing for a small cross-sectional area that conforms well to the bore. This design ensures uniform pressure across four steel rails and two expanders, providing reliable oil control and reducing oil consumption. Made in the USA, these rings are engineered for durability and high performance. The set includes enough rings for two pistons, with two rings per groove, except for the rails which are paired with one expander ring. Whether you're rebuilding or upgrading your engine, these Hastings piston rings deliver quality, precision, and longevity to meet the demands of modern engines.
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