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Mahle is the world's largest manufacturer of piston rings. Their tremendous research and development and extensive OE connections mean that Mahle Original standard piston ring sets have the technological edge. Things like narrow compression rings, steel compression rings for gasoline engines, low-tension oil rings, and coated compression rings for diesels all came from OE. Mahle's entire Original line proves time and again that it should be the ring of choice under every hood - regardless of the application. Mahle Original standard piston rings offer high tensile strength, high yield strength, and excellent hardness with low ring mass. These factors lead to stress resistance, minimal groove pound-out, long service life, cylinder conformability, oil economy, and good blow-by control with low friction. Whether you're repairing a modern computer-controlled engine, or rebuilding an older engine, be sure to specify Mahle Original standard piston ring sets (formerly Perfect Circle) … trusted by professional automotive technicians for over 100 years.
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$20.99
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$54.99
Manley lightweight dual drag race valve springs offer exceptional strength and performance, while reducing weight and promoting higher revs. These springs are manufactured from super-clean, high-tensile chrome silicon steel and are shot-peened to MIL specs for maximum fatigue life. They feature proprietary, multi-step heat-treating that minimizes load loss and have computer-aided modeling to minimize valve bounce and valve gear separation. Manley valve springs are smaller in diameter with a lightweight dual design, allowing engines to rev higher faster, and with better valvetrain control. An extended tip thickness is designed to eliminate overload breakage, and their tightly controlled open-end flatness reduces valve stem side loading. It's amazing to think that a tenth of a second can make any difference, but racers win or lose sometimes by thousandths. Manley lightweight dual drag race valve springs will add strength, while reducing weight and times.
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$48.84
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