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Arrington Performance BIG GAS CNC Ported 392 HEMI Heads

Dimensions:12 x 12 x 48
Weight:80.0 lbs
Arrington Performance
Base Price: $2,999.00
Price with Options: $2,999.00

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Head upgrades  
Titanium retainers - Recommended for Race Applications Only, Add $150.00
Big Valve Heads, Add $300.00
**Required Core Charge  
Core Charge, Add $1,500.00

Arrington BIG GAS CNC Ported Heads are now available. These upgraded 392 heads include improved valve springs, retainers and locators and allow support of cams with up to .645” of lift. The BIG GAS heads are made of 356 - T6 Aluminum. A stronger alloy along with noticable differences in the casting when compared to a standard 6.4L Apache head, make this set of heads perfect for that high boost engine.

The valve seats are single point CNC cut with a Newen Epoc using the same designs and processes as our Dodge P7, P8 and TRD Phase 14 Race Heads and our proven Phase 4 HEMI heads. All intake and exhaust ports are smoothed using our engineered and dyno proven custom CNC methods designed by our in house HEMI engine builders and engineers. We then re-test these designs using our custom built computer controlled dynamometers and in a custom built wet flow bench which flows in the proper direction unlike the standard wet flow benches which flow into the combustion chamber to exit the intake valve and port.
General Specifications:
  • CNC Ported
  • Single Point Cut CNC Valve Job on a Newen Epoc CNC
  • Upgraded:
    • PSI 1511 Springs
    • Retainers
    • Locators
    • Valve Seals
  • Capable of up to .645” Lift
  • High Velocity Air Flow
  • Smoothed Injector and Valve Bosses
  • Decks are milled to ensure a flat mating surface.
  • Stock 6.4L
  • Forged/Stroked 5.7L*, 6.1L, 6.4L  

*Pre 09' 5.7L engines will require adapters to use the stock intake manifold.

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