Modern Hemi 5.7L & 6.1L Performance Cylinder Heads

Plum Floored Creations is an authorized retailer and installer for Inertia Motorsports! Let us build you custom cylinder heads for your modern hemi powered vehicle ranging from stock valve size performance ported heads to big valve heads with custom valve springs, rockers, and more!

2003-2008 5.7L Hemi Cylinder Heads

hemi cylinder heads

5.7L Inertia Fuel Efficiency Cylinder Heads - $1375

  • .030 Milled 5.7L Cylinder Heads
  • Fully CNC ported and hand blended exhaust ports
  • New Valve Seals Installed
  • New 6.1L Valve Springs and Hardware Installed
  • Includes new Cylinder Head Bolts and Head Gaskets
  • 8 Custom Forged Exhaust Pushrods to reduce valve train noise and stiffen performance

5.7L Inertia Performance Cylinder Heads - $1575

  • Fully CNC and Hand Blended Intake and Exhaust Ports
  • Stock Diameter Intake and Exhaust Valves
  • New Valve Seals Installed
  • Upgraded Valve Springs and Hardware Installed
  • Proprietary Valve Job

5.7L Premium Big Valve Cylinder Heads - $2075

  • Fully CNC and Hand Blended Intake and Exhaust Ports
  • 2.02 Diameter Intake Valves
  • 1.57 Diameter Exhaust Valves
  • New Valve Seals Installed
  • Upgraded Valve Springs Installed
  • Proprietary Valve Job
  • Valve guides are honed to set clearance to new specs.
  • Chrome Molley Retainers and Single Groove Locks Installed

6.1L Hemi Cylinder Heads

6.1L Inertia Performance Cylinder Heads - $1675

  • Fully CNC and Hand Blended Intake and Exhaust Ports
  • Stock Diameter Intake and Exhaust Valves
  • New Valve Seals Installed
  • Proprietary Valve Job
  • New Valve Springs and Hardware Installed

6.1L Premium Big Valve Cylinder Heads - $2175

  • Fully CNC and Hand Blended Intake and Exhaust Ports
  • 2.10 Diameter Intake Valves, 1.60 Diameter Exhaust Valves
  • New Valve Seals Installed
  • Upgraded Valve Springs Installed
  • Proprietary Valve Job
  • Valve guides are honed to set clearance to new specs.
  • Chrome Molley Retainers and Single Groove Locks Installed

2009 5.7L "Eagle" VVT Hemi Cylinder Heads

5.7 VVT Stock Chamber Cylinder Heads - $1675

  • Fully CNC and Hand Blended Intake and Exhaust Ports
  • Stock Chamber Size for 2009 Vehicle Applications
  • New Valve Seals Installed
  • Proprietary Valve Job
  • New Valve Springs and Hardware Installed
  • Stock Diameter Intake and Exhaust Valves
  • A Directional Vein for Increased Performance at High Valve Lifts

5.7 VVT Big Chamber Cylinder Heads - $1875

  • Fully CNC and Hand Blended Intake and Exhaust Ports
  • Large Chamber Size for 2003-2008 5.7L Vehicle Applications
  • New Valve Seals Installed
  • Proprietary Valve Job
  • New Valve Springs and Hardware Installed
  • Stock Diameter Intake and Exhaust Valves
  • A Directional Vein for Increased Performance at High Valve Lifts

The ports are the same for standard chamber head but showed the big chamber head which is designed as a retrofit head for 03-08 5.7 HEMI. The big chamber heads on a 03-08 5.7 hemi engine will yield approximately a 10-3/4 compression ratio which will allow a pretty healthy cam to be used without reducing cylinder pressure to a detrimental level. The Inertia '09 Hemi heads feature a directional vein and a 6 angle valve job on the intake and a proprietary full radius valve job on the exhaust.