Engine Swap ECU / PCM Calibration

Performing an engine swap in your Chrysler, Dodge, Jeep, or Ram vehicle? A physical swap is only half the battle — your factory ECU/PCM must be properly reprogrammed to run the new engine. MoPower Calibrations specializes in Mopar engine swap ECU tuning, delivering plug-and-play calibrations that make your swap start, idle, and drive like it came factory-equipped.

What We Do

• VIN & Immobilizer (SKIM) Matching – marry donor PCMs to your vehicle, eliminating security lockouts.
• Fuel & Spark Recalibration – adjust for new displacement, airflow, injectors, and compression.
• Transmission & TCM Strategy – reprogram shift schedules, torque management, and gear ratios for the new engine.
• Feature Alignment – idle control, cooling fans, AC requests, diagnostics, and driveability refinements.
• Performance Calibration – optimized timing and fueling for smooth drivability and reliable power delivery.

Supported Mopar Engines

We support a wide range of Mopar engine families for swaps and upgrades:

• 2.0L / 2.4L I4
• 2.7L / 3.5L V6
• 3.6L Pentastar V6
• 4.0L SOHC V6
• 5.7L HEMI V8
• 6.1L SRT8 HEMI V8
• 6.4L (392) HEMI V8
• Custom 426 “stroker” HEMI builds

Common Swaps We Calibrate

• Magnum / Charger / 300 – 2.7L → 3.5L
• Charger / Challenger – 5.7L → 6.1L
• Charger / Challenger – 5.7L → 6.4L (392 HEMI)
• 300C / Charger / Challenger – 3.5L → 5.7L
• Jeep / Ram – 3.6L → 5.7L HEMI (where applicable)

Using a Donor PCM?

If your swap uses the donor vehicle’s ECU, add our VIN & SKIM Matching Service. This ensures the PCM is properly “married” to your vehicle, preventing immobilizer lockouts and allowing a clean startup.

How It Works

1. Ship your ECU/PCM (and TCM if applicable) to MoPower Calibrations.
2. We apply the correct base file and swap calibration for your new engine.
3. We return it plug-and-play. Reinstall and fire it up — no dealer trip required.

Important Notes

• Please include your Full Name, Return Address, and Vehicle VIN with your shipment.
• Turnaround time is typically 2–3 business days plus shipping.
• All calibrations are for off-road / competition use only.
• Emissions compliance and warranty coverage may be affected by engine modifications.
• Not for sale or use in California.

Trust MoPower Calibrations to make your Mopar engine swap a success with an ECU that runs, drives, and performs like factory — with the added power and reliability your build deserves.