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The KB Performance Piston Kit, part number KB292.030, is designed for high-performance applications with a 3.188-inch bore and a +0.030-inch overbore size, offering an 8.2:1 compression ratio. Crafted from high-strength T-5 heat-treated 390 hypereutectic aluminum alloy, these pistons provide a durable and reliable solution for demanding engine builds. The material's excellent thermal conductivity ensures efficient heat dissipation, contributing to the pistons' longevity and optimal performance. Each piston is diamond-machined to strict tolerances, with weight precision within one gram and dimensional accuracy less than half a thousandth of an inch, ensuring smooth operation and minimal piston rock. The kit includes two pistons, pins, spiral-lock pin clips, and Hastings moly rings, making it a comprehensive upgrade for your engine. The pistons are engineered to allow a tighter fit compared to other pistons, resulting in reduced piston rock and enhanced ring seal, which translates into improved power output and engine efficiency. As with all high-performance pistons, special attention must be paid to the top ring end gap during installation, especially considering the pistons' thermal properties. It is recommended to follow the included instructions carefully to achieve the correct piston clearance and optimal performance. Replacement rings and pin lock rings are available separately to facilitate maintenance and future upgrades. Whether you're rebuilding or customizing your engine, the KB Performance Piston Kit offers precision engineering and durable construction for reliable, high-performance operation.
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