The Jeep Grand Cherokee Trackhawk is one of the most outrageous SUVs ever built — 707 horsepower, a 6.2L supercharged HEMI, and enough torque to embarrass most sports cars. The catch? Buying one new meant parting with around $90,000–$130,000 depending on options, and even used models still hover above the $70K mark.
But what if you could get most of the Trackhawk experience — the power, the sound, the aggressive styling — for under $30,000? YouTuber @337speed has shown it’s possible, and with the right approach, you can replicate (and even improve upon) the concept. Here’s how it works, plus my take on whether it’s truly worth doing.
Step 1: Choose the Right Base Vehicle
The build starts with a 2014 Jeep Grand Cherokee equipped with the 5.7L HEMI and four-wheel drive. You can find these for around $9,000 in decent condition.
Why not start with the cheaper V6 models? Two words: transmission strength. The 5.7L HEMI comes paired with the ZF 8HP70 transmission, which is significantly stronger than the 8HP45 found in the V6. While the stock Trackhawk uses the beefier 8HP95, the 8HP70 can reliably handle up to 700+ wheel horsepower with proper cooling, conservative tuning, and high-quality transmission fluid.
Also, the 5.7L models already have the AWD system necessary to put down serious power — a must if you want that Trackhawk-like launch capability.
Step 2: Heart Transplant — The 6.2L Supercharged HEMI
The next step is replacing the stock 5.7L with the legendary 6.2L supercharged HEMI.
You can find complete engine take-outs — supercharger and all — on Facebook Marketplace, salvage auctions, or performance forums for around $10,000. These often come from wrecked Hellcats, Trackhawks, or even Dodge Demons.
Important considerations when swapping:
- Accessory drive compatibility: The 6.2 uses a different front accessory layout than the 5.7, so plan for belt routing changes and possible bracket swaps.
- Electronics: You’ll need the correct PCM and a professional tune to integrate the supercharged setup with your Grand Cherokee’s systems.
- Cooling: The supercharger heat exchanger must be plumbed in properly. Consider upgrading to a larger aftermarket unit to prevent heat soak.
Step 3: Let It Breathe — Exhaust Upgrade
A Trackhawk’s exhaust note is a big part of its identity. Swapping to a Trackhawk-style exhaust system (~$2,500) not only unleashes that deep, aggressive rumble but also improves flow for better horsepower gains.
I’d personally recommend going with a high-quality stainless steel system from a reputable brand and adding high-flow catalytic converters to avoid restrictive backpressure.
Step 4: Fuel Delivery — The Lifeline of Power
The Hellcat 525 LPH fuel pump (~$400) is essential for ensuring the engine gets enough fuel at wide-open throttle. Running lean on a forced induction setup can cause catastrophic engine damage, so don’t cut corners here.
For extra insurance, I’d pair the high-flow pump with upgraded fuel injectors and an adjustable fuel pressure regulator, especially if you plan to pulley down the supercharger for more boost.
Step 5: The Vicrez Trackhawk SRT-Style Conversion Kit
Here’s where the transformation goes from “sleeper” to “street presence.” The Vicrez Trackhawk Conversion Kit replaces your factory exterior components with Trackhawk-inspired bodywork, including:
- Aggressive front bumper and grille
- Lower valance and air intakes
- Side skirts
- Rear bumper diffuser
- Optional hood vents and trim pieces
The result? A dead ringer for the factory Trackhawk — at a fraction of the cost. You’ll want to have these parts professionally painted and installed for best results.
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Step 6: Brakes, Wheels, and Tires — Stopping as Well as You Go
With power comes responsibility — specifically, the responsibility to stop. Upgrading to SRT Brembo brakes with larger rotors and performance pads is non-negotiable. Pair this with lightweight performance wheels and sticky tires (~$3,000 total) to maximize grip and braking performance.
While the stock Grand Cherokee brakes can physically stop the car, repeated high-speed braking will quickly reveal their limitations through fade and warping.
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The Budget Breakdown
| Component | Estimated Cost |
|---|---|
| 2014 Jeep Grand Cherokee 5.7L HEMI | $9,000 |
| 6.2L Supercharged HEMI Engine | $10,000 |
| Trackhawk-Style Exhaust | $2,500 |
| Hellcat 525 LPH Fuel Pump | $400 |
| Vicrez Trackhawk Conversion Kit | $2,100 |
| SRT Brakes + Wheels/Tires | $3,000 |
| Total | < $30,000 |
My Opinion: Is This Build Worth It?
From a performance-per-dollar perspective, this project is a home run. For less than a quarter of the cost of a real Trackhawk, you can get 90% of the acceleration, handling, and styling.
However, there are a few caveats:
- Labor costs: If you can’t do the swap yourself, shop labor could easily add $5,000–$8,000 to the total.
- Interior differences: The factory Trackhawk’s premium interior won’t be replicated here unless you invest further.
- Reliability: Even though the 8HP70 is strong, it’s not the same as the 8HP95. Long-term abuse may shorten its life.
- Insurance and registration: Depending on your location, insuring a heavily modified vehicle can be trickier than insuring a stock Trackhawk.
Still, if you’re mechanically savvy, want a unique project, and enjoy the process as much as the final product, this build can be incredibly rewarding.
Credit: @337speed
