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D&J Precision Machine 2003-2007 5.9 CR Stage 1 Cummins Performance Head

D&J Precision Machine 2003-2007 5.9 CR Stage 1 Cummins Performance Head

Regular price $2,999.99 USD
Sale price $2,999.99 USD Regular price
Shipping calculated at checkout.

14 Dec. Estimated arrival
11 Dec. Order placed
12-13 Dec. Order dispatches
14 Dec. Delivered!

5.9 CR Stage 1 Cummins Performance Head

 

Our 5.9 CR Stage 1 Cummins Performance Head is a step up in performance without the extra expense and work involved with an aftermarket intake. This head includes everything in our HP Reman Head along with 105-pound valve springs and a 5-axis port job while retaining the factory intake plenum. This increases the flow on the intake from around 155 CFM stock to 220 CFM, enhancing low-end performance, decreasing boost pressure, and lowering EGTs. This, in turn, increases the amount of fuel you can burn, allowing you to make more power.

Key Features:

  • Enhanced Performance: Upgraded to 105-pound valve springs and a 5-axis CNC port job.
  • Improved Airflow: Intake flow increased from 155 CFM to 220 CFM.
  • Factory Intake Plenum: Retains the factory intake plenum for ease of installation.
  • Comprehensive Upgrades: Includes all features of our HP Reman Head.

Detailed Process:

  • Complete Disassembly: Head is disassembled, and all soft plugs are removed.
  • Cleaning and Blasting: Thorough cleaning and blasting to ensure a pristine surface.
  • Crack Check: Performed to ensure structural integrity.
  • New Components: Installation of all-new bronze guides and HD extra-large seats on both intake and exhaust sides.
  • 5-Axis CNC Porting: Performed with the stock intake shelf in place for optimal airflow.
  • High-Performance Valve Job: Precision CNC valve job performed for enhanced performance.
  • Resurfacing: The head is resurfaced to meet exact specifications.
  • Thorough Cleaning: Comprehensive cleaning process to eliminate all debris.
  • Professional Painting: Painted for a durable and professional finish.
  • Expert Assembly: Assembled with all new valve seals, soft plugs, and HD springs.
  • Pressure Checking: Valves and coolant passages are pressure checked to ensure top quality and reliability.

Important Note:

*Cores must be in good condition with no cracks and must be rebuildable. D&J Precision Machine will inspect your core upon arrival to determine its suitability for rebuilding.

Upgrade your truck's performance and reliability with our 5.9 CR Stage 1 Cummins Performance Head.

SKU- DJPCH100026

⚠ WARNING: Cancer & Reproductive Harm

California Proposition 65 Warning - P65warnings.ca.gov

D&J Precision Machine 2003-2007 5.9 CR Stage 1 Cummins Performance Head D&J Precision Machine

D&J Precision Machine 2003-2007 5.9 CR Stage 1 Cummins Performance Head

Regular price $2,999.99 USD
Sale price $2,999.99 USD Regular price

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