Professional Installation and Tuning Recommended

This performance camshaft package should be installed by a qualified engine builder, certified machinist, or automotive technician familiar with 6.4L HEMI valvetrain, MDS-delete, and variable cam timing systems.

A compatible phaser limiter or phaser lock is required. Engine calibration may also be necessary after installation to accommodate the camshaft profile, non-MDS lifter configuration, and related engine operating changes.

Non-MDS and MDS-Delete Notice

This kit includes non-MDS lifters. Additional components, programming, or modifications may be required when converting an originally MDS-equipped engine to a non-MDS configuration. Only the components specifically listed are included.

The supplied product information does not state that MDS-delete plugs, trays, solenoids, wiring modifications, tuning, pushrods, timing components, or a phaser limiter are included.

Recommended Inspection Procedures

• Inspect the camshaft bearings before installing the replacement camshaft.
• Inspect the rocker arms, rocker shafts, pushrods, and related valvetrain components.
• Verify that the engine is correctly configured for non-MDS lifters.
• Verify piston-to-valve clearance for the specific engine combination.
• Verify pushrod length and valvetrain geometry during assembly.
• Inspect the timing chain, guides, tensioner, sprockets, and phaser.
• Confirm the correct phaser limiter or phaser lock before final assembly.
• Check the cylinder heads for cracks, warpage, and damaged sealing surfaces.
• Clean all engine oil passages and internal surfaces thoroughly.
• Remove all metallic debris from any previous camshaft or lifter failure.
• Prime the lubrication system before initial startup.
• Verify proper engine oil pressure before returning the vehicle to service.
• Follow the COMP Cams installation instructions and factory torque procedures.
• Use new engine oil and a new oil filter after assembly.

Fitment Notice

This camshaft is specified for compatible 6.4L Apache HEMI engines only. The supplied product information lists a broad 2011-2022 Dodge and Chrysler application range, including select Ram, Charger, Challenger, Grand Cherokee, and Durango models.

Exact compatibility depends on the model year, VIN, engine configuration, cylinder head configuration, lifter system, MDS-delete setup, variable cam timing system, existing modifications, and calibration. Vehicle model and year alone do not guarantee fitment.

Performance Component Notice

Actual horsepower, torque, idle quality, drivability, and operating characteristics depend on the complete engine combination, exhaust system, intake system, compression ratio, drivetrain, tuning, and installation quality. No specific power increase is guaranteed.

Warranty Information

The stated lifetime warranty applies when the kit is installed by a certified machinist and remains subject to the manufacturer’s complete warranty requirements. Proof of qualifying installation may be required.

Warranty coverage may not apply to damage caused by improper installation, incorrect tuning, inadequate lubrication, incorrect non-MDS conversion procedures, insufficient piston-to-valve clearance, improper valvetrain geometry, contaminated oil passages, improper phaser control, overheating, or failure to correct the original cause of engine damage.

Professional Installation Recommended

This performance camshaft package is intended for installation by a qualified engine builder, certified machinist, or automotive technician experienced with 6.4L Apache HEMI valvetrain systems and variable cam timing.

A compatible phaser limiter or phaser lock is required and is not included. Engine calibration may also be necessary after installation.

Non-MDS Configuration Notice

This package includes premium non-MDS hydraulic roller lifters. It is intended for compatible non-MDS engine configurations or MDS-delete builds.

The supplied product information does not indicate that MDS block-off plugs, timing components, pushrods, tuning devices, or additional MDS-delete hardware are included.

Recommended Inspection Procedures

• Inspect the camshaft bearings before installation.
• Inspect rocker arms, rocker shafts, pushrods, and valve tips.
• Verify piston-to-valve clearance.
• Verify pushrod length and valvetrain geometry.
• Inspect timing chain, guides, tensioner, sprockets, and phaser.
• Confirm the correct phaser limiter or phaser lock before final assembly.
• Clean all engine oil passages thoroughly.
• Remove debris from previous camshaft or lifter failures.
• Prime the lubrication system before initial startup.
• Verify engine oil pressure before placing the engine into service.
• Follow COMP Cams installation procedures and factory torque specifications.
• Use fresh engine oil and a new oil filter after assembly.

Fitment Notice

This camshaft is designed for compatible 6.4L Apache HEMI engines only. Vehicle model and year alone do not guarantee compatibility. Verify VIN, engine configuration, lifter style, and phaser requirements before ordering.

Performance Component Notice

Actual horsepower, torque, idle quality, drivability, and engine characteristics vary depending on the complete engine combination, supporting modifications, compression ratio, exhaust system, calibration, and installation quality. No specific power increase is guaranteed.

Warranty Information

The stated lifetime warranty applies when installed by a certified machinist and remains subject to the manufacturer's warranty requirements. Proof of professional installation may be required.

Warranty coverage may not apply to damage resulting from improper installation, incorrect tuning, inadequate lubrication, improper valvetrain geometry, insufficient piston-to-valve clearance, overheating, or failure to correct the original cause of engine damage.