6.4L 392 HEMI Forged 4032 Drop In Pistons and Rods Power Package

Weight:30.0 lbs
**Please check local and State laws for emissions compliance before purchasing this product**
*Bore Size Option  
Please send Standard 4.090 bore
Please send .005 oversize 4.095 bore, Add $40.00
Please send .010 oversize 4.100 bore, Add $80.00
*Bearing Options  
No Bearings
STD P rod bearing non coated, Add $95.00
Coated Rod Bearings, Add $189.00
Coated Rod Bearings & Premium Main bearings, Add $353.00
*Gasket Options  
No Gaskets
MLX HEMI 5 Layer Head Gaskets by Cometic, Add $253.14

Base Price: $1,728.99
Customized Price: $1,728.99

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  • Description
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Are you looking to get the MOST out of your Gen III HEMI without worrying about failing internals? If you’re considering supercharging, turbo charging, running nitrous, or a combination of these then you have come to the right place. OK we have had great success with our drop in pistons for a couple years now so it is time to turn up the wick. These will match factory specs for balance and will not require any balancing(therefore no crank removal). We will be making the pistons from 4032 material and will offer 2 ring packages for you guys that want to spray. The rods will be considerably beefy in order to match the factory weight. They will also include a custom designed ARP 2000 bolt for added strength. This should let you guys raise the boost or spray levels to the 600 to 700RWHP levels.

No engine build delays - No balancing charges - Less down time - No engine shipping cost


  • MAHLE Modern Muscle Super Power Pack Piston
  • 4032 material Factory weight (so piston can be used with stock rod if you choose to do so)
  • Topring moved down
  • Accumulator groove between first and second ring
  • Napier oil control second ring
  • Moly or steel top ring depending on application
  • Coated skirts
  • Coated ring lands
  • Comp ratio 10.0 to 10.8 depending on gasket selection
  • Molnar Rods
  • ARP Rod Bolts
  • Coated bearing option for high HP builds

6.4L 392 HEMI Engines 
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