Piston And Ring Technology
A forging’s better heat-rejection allows locating the top ring closer to the deck. With 1/16-, 1/16-, and 1/8-inch rings, this Speed-Pro forging (PN LW5025, left) keeps the oil ring out of the pinhole on Chevy 383 strokers with 6-inch rods. Compare it to Speed-Pro’s hypereutectic version (PN H124B, right). View Related Article
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