The allure of a powerful 6.7 Cummins engine in a second-generation Dodge Ram is undeniable. This swap, transforming a capable truck into a beast, has captivated enthusiasts for years. But undertaking such a project requires meticulous planning, significant mechanical aptitude, and a healthy dose of patience. This comprehensive guide explores the intricacies of a 2nd gen Dodge Ram 6.7 Cummins swap, addressing common questions and highlighting key considerations.
What's Involved in a 6.7 Cummins Swap into a 2nd Gen Dodge Ram?
A 6.7 Cummins swap isn't a weekend project; it's a substantial undertaking demanding specialized tools, expertise, and considerable time. The sheer size and complexity of the 6.7 engine require extensive modifications to the truck's chassis, electrical system, and drivetrain. You'll need to source the engine, transmission (likely a G56 or similar), wiring harness, and numerous other components. Fabrication skills are frequently essential to overcome fitment challenges, and professional assistance may be needed for certain aspects.
What are the Challenges of a 6.7 Cummins Swap in a 2nd Gen Ram?
Several significant hurdles must be overcome:
- Engine Bay Fitment: The 6.7 Cummins is considerably larger than the original engine, requiring extensive modifications to the firewall, inner fenders, and possibly even the frame rails.
- Transmission Compatibility: Choosing a suitable transmission is critical. The G56 manual transmission is a popular choice, but proper adaptation and potentially custom driveshafts will be needed. Automatic transmission options exist but add complexity.
- Wiring Harness Integration: The 6.7 Cummins' complex electronic system necessitates a custom wiring harness or extensive modification of the existing harness. This is arguably one of the most challenging aspects of the swap.
- Exhaust System Fabrication: A custom exhaust system will almost certainly be required due to the altered engine bay layout and increased size of the engine.
- Cooling System Modifications: The larger engine will generate significantly more heat, demanding modifications to the radiator, cooling fans, and potentially the entire cooling system.
- ECM Tuning: Proper calibration of the engine control module (ECM) is vital for optimal performance and reliability. This often requires professional tuning services.
How Much Does a 6.7 Cummins Swap Cost?
The total cost of a 6.7 Cummins swap is highly variable and depends on several factors, including the condition of the donor engine, the extent of custom fabrication required, the chosen transmission, and the level of professional assistance needed. Expect to invest a significant amount of money, potentially ranging from $15,000 to $30,000 or more, depending on the circumstances.
What Transmission Works Best with a 6.7 Cummins Swap?
The G56 manual transmission is a popular choice for its robustness and proven compatibility. However, it requires careful adaptation, and a custom driveshaft is likely needed. Automatic transmission options exist, but these generally increase the complexity and cost of the swap. Careful consideration must be given to the transmission's capacity and the expected power output of the swapped engine.
Is a 6.7 Cummins Swap Worth It?
The decision to undertake a 6.7 Cummins swap hinges on your mechanical skills, budget, and desired outcome. It's a monumental undertaking, demanding considerable time, effort, and financial resources. However, for those with the necessary expertise and a passion for powerful trucks, the immense satisfaction and increased performance make it a worthwhile endeavor. The result is a vastly more powerful and capable truck, a true testament to mechanical prowess and dedication. The key is thorough planning, realistic budgeting, and a willingness to overcome challenges along the way.
