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L8T
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L8T Performance Parts
The L8T 6.6L V8 (2020–present) is a Gen V iron-block powerhouse designed for HD trucks like the Silverado 2500/3500 and Sierra HD. With 401 hp and 464 lb-ft, it's perfect for heavy-duty performance applications. Texas Speed & Performance offers camshaft kits, valvetrain upgrades, and tuning options built to increase towing power, throttle response, and reliability for this torque-heavy engine platform.
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