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Upgrade your motorcycle engine with the KB Performance Piston Kit designed specifically for 88" Twin Cam models. Crafted from high-strength T-5 heat-treated 390 hypereutectic aluminum alloy, these pistons offer exceptional durability and a precise fit, ensuring longer piston and ring life. The diamond-machined surface guarantees consistent weight within one gram and maintains tolerances of less than 0.0005 inches, promoting smooth operation and optimal performance. Each kit includes two pistons, pins, spiral-lock pin clips, and Hastings moly rings (replacement rings sold separately), providing everything needed for a comprehensive upgrade. KB pistons can be installed tighter than standard options, which reduces piston rock and enhances ring seal, leading to improved compression and efficiency. Proper installation and clearance adjustments are essential, so be sure to follow the included instructions to achieve the best results. Because of the pistons' thermal conductivity and design, special attention must be paid to the top ring end gap during installation for reliable operation and longevity. This piston kit is a reliable choice for enthusiasts seeking to boost performance while maintaining engine integrity, offering a balance of strength, precision, and ease of installation for your Harley-Davidson Twin Cam engine.
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