Why Convert to a Non-MDS Valvetrain?

The factory Multi-Displacement System (MDS) used on many 5.7L Eagle HEMI engines is a common source of hydraulic lifter and camshaft failures. Converting to a Non-MDS valvetrain removes the factory MDS lifters while sealing the oil passages with MDS oil galley plugs, creating a simpler and more reliable engine configuration.

Installation Recommendations

• This kit is intended for VVT-equipped 5.7L HEMI engines converted to a Non-MDS configuration.
• An ECM calibration or custom tuning may be required after an MDS delete conversion.
• Inspect pushrods, rocker arms, valve springs, timing components, and VVT hardware during installation.
• Lubricate the camshaft and lifters with high-quality engine assembly lube before startup.
• Install the included MDS oil galley plugs to properly seal the factory MDS oil passages.
• Replace engine oil and filter after installation.
• Professional installation is recommended.

Quality Components

This kit combines premium replacement components engineered to meet or exceed OE fit and performance standards. Replacing the camshaft, lifters, head gaskets, and head bolts together helps reduce future repairs while restoring smooth engine operation and dependable performance.

Important Fitment Information

Please verify your vehicle's year, make, model, engine size, and OEM part numbers before ordering. If you need assistance confirming compatibility, contact us with your VIN and our HEMI specialists will be happy to help you select the correct kit.