MDK400 — Stock Engine Cylinder Deactivation Delete Kit

• Complete, Engine Matched Solution: Each kit bundles the essential non deactivation valvetrain components required for your specific application, engineered to restore proper operation without AFM/DOD or MDS
• Upgrades Reliability for the Long Haul: Replaces failure prone deactivation lifters with Melling’s high strength conventional lifters, reducing risk of collapse, misfire, or the notorious “lifter tick,” and extending valvetrain service life
• Restores Full Time Power & Sound: Eliminates cylinder shut off logic so all cylinders stay active under every condition, delivering smoother throttle response, a consistent exhaust note, and the full performance your V8 was built to deliver
• Performance Ready Platform: Provides the solid valvetrain foundation required for aftermarket camshafts, higher spring pressures, and tuning—unlocking more horsepower without system limitations, all backed by Melling’s proven quality
• SEMA certified 49 state compliant, for off highway only use in California

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