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The HASTINGS 7003 piston ring set is designed for 3.188-inch bore engines, providing reliable sealing and oil control for optimal engine performance. This set includes top compression rings, second compression rings, and oil control rings, ensuring comprehensive coverage for your engine rebuild or repair. The top compression ring is torsional, which enhances gas side sealing and improves oil control, with options for barrel or straight face designs to suit different applications. The second compression ring also features a torsional design, featuring a twist that creates an OD bottom side scraping edge, helping to wipe excess oil from the cylinder wall into the crankcase, thereby reducing oil consumption and emissions. The oil control rings are a three-piece flex vent design, allowing for better conformability to the cylinder bore and uniform pressure distribution via four steel rails and two expanders. This construction ensures effective oil scraping and retention, maintaining optimal lubrication and preventing oil from entering the combustion chamber. Manufactured in the USA, this set provides enough rings for two pistons, with two rings per groove, except for the oil rails, which are paired with two rail rings per one expander ring. Whether performing a rebuild or routine maintenance, these piston rings are engineered for durability and performance, making them an excellent choice for high-performance engines requiring precision sealing and oil control.
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