PSI Valve Spring & Manley Titanium Retainer Set for 09-24 5.7/6.2/6.4L HEMI

In order to run the higher lift VVT 5.7L, 6.2L and 6.4L HEMI camshafts, you will need to upgrade your stock valve springs.

This package comes with everything needed to plug-n-play the valve spring upgrade on VVT cylinder heads.

Includes:

• PSI LS1515ML Valve Springs
• Manley 23629-16 Retainers for 6.2L Hellcat / 6.4L / 5.7L or Manley 23622-16 Retainers for 6.2L Redeye/Demon
• 6.2L and 6.4L require shims (no shims required for 5.7) 24 shims in total: 1 Thick Shim & 1 Thin Shim on Intake, 1 Thick Shim on Exhaust. Installed height is 1.950".