392 HEMI Complete Engine Swap Kit

505 HP Plug-and-Play V8 Conversion for Jeep Wrangler & Gladiator (2018+)

This is the largest naturally aspirated V8 in its class, now available as a fully engineered, drop-in swap system for your Wrangler or Gladiator.

The ONLY true OEM-calibrated, fully integrated, plug-and-play 392 HEMI swap kit that includes every single component, harness, and factory PCM calibration.

This system has been refined through 200+ professional installs for OEM-level drivability and long-term reliability.

No guesswork.
No parts store runs.
No unreliable custom tuning.

Just pure American V8 power, done the right way.

Professional Installation only

The Power You Deserve

Transform your Jeep with the legendary 6.4L HEMI 392 V8, delivering:

• 505 Horsepower
• 470 lb-ft of Torque
• OEM-grade reliability
• 90% plug-and-play installation
• Zero cutting. Zero splicing.

How the Process Works

1. We ship your complete engine + swap kit
2. Your installer removes your PCM and ships it to us
3. We flash it to OEM 392 specifications and return it within 7 days
4. Your local ASC-certified technician completes the install

Nationwide Concierge Installation Option (additional cost)
Driveway-to-Driveway Turn-Key Swap

Complete Turn-Key Kit - Everything Included

This is a true complete system - no additional purchases required

Every required component is included so your installer can perform the swap without delays or missing parts.

Major Components (All New)

• Brand-new 6.4L 392 HEMI engine
• Complete 505 HP engine conversion system
• Custom Modified 8 Speed Transmission
• 3.5” full stainless-steel exhaust system (tip-to-tail)
• New A/C compressor
• New cold air intake, exhaust manifold, engine oil cooler. high flow fuel pump
• New coolant reservoir, hoses & full routing system
• High-output alternator
• New alternator belts
• All adapter plates to mate to factory transmission
• 392 engine mounts
• ECU relocation brackets

Electrical, PCM & Controls (OEM-Level Integration)

• Complete wiring harness (90% plug-and-play)
• No splicing required
• Round-trip PCM shipping included
• PCM flashed to OEM factory 392 calibration
• NOT a custom tune
• Runs correctly at all elevations & conditions
• All factory gauges function exactly like stock
• Speedometer
• Tachometer
• Coolant temp
• Oil pressure
• Immobilizer, ignition & gateway devices re-bound

Fully scannable by Chrysler dealers & emissions testing

Compatibility Guide

• 3.6L Wrangler / Gladiator (2018+) ✅ Works with factory transmission under 90k miles
• 3.6L with 90k+ miles⚠️ Transmission replacement recommended
• 2.0L Turbo Models⚠️ Requires upgraded fuel pump & transmission
• JK 3.6L V6 ❌ Not compatible

Fuel System Requirements

• 3.6L models: Factory fuel pump works
• 2.0L models: Upgraded fuel pump required (available)
• Fuel system calibrated to OEM closed-loop fueling (14.1 A/F ratio)

Warranty

• Part Warranty: 24-Month | 24,000 Mile
• Labor Warranty: 12-Month | When Installed by SoFloCustoms4x4

Nationwide Concierge Installation Option 

Driveway-to-Driveway Turn-Key Swap (additional Cost)

We handle everything:

• Door-to-door vehicle transport
• Full professional installation at SoFlo Customs
• All PCM programming
• Return delivery to your driveway
• 3-week total turnaround from pickup

You provide:

• Your address
• Your VIN
• Current mileage

Common Questions

Q: What exactly comes in the kit?
A: Everything required to complete the install and drive immediately, including full stainless exhaust.

Q: Will this work with JK 3.6L models?
A: No, this system is designed only for JL Wrangler & JT Gladiator platforms.

Q: Is custom tuning required?
A: No. This uses OEM factory 392 calibration, not risky custom tuning.

Q: Will emissions systems function normally?
A: Yes. All systems are fully scan-ready for dealers and emissions testing.

Q: Are engine mounts included?
A: Yes.

Q: Are ECU relocation brackets included?
A: Yes.

Q: Are immobilizer and security systems re-paired?
A: Yes, all security systems function normally after flashing.

Please contact us with any questions.