Fully Built | Dyno’d 750HP at the tire | Work & Play | Only 4,000 Miles on New Custom Built $48K Engine w/ Compound Turbos. 4K miles on all added upgrades listed below. See video of truck racing helcat.2006 GMC Sierra 2500HD LBZ Duramax – $65,000 OBO Tons of Upgrades on virtually everything🔥

If you're looking for a no-expense-spared, built-not-bought Duramax, this is the one.

This 2006 GMC Sierra 2500HD LBZ has been completely rebuilt for performance, reliability, and comfort — whether you're towing, cruising, or showing off.

Over $100K in upgrades and custom work. Selling at a fraction of the build cost.

💪 Performance / Powertrain

This LBZ Duramax is known as one of the most reliable years — and this one has been rebuilt from the ground up with premium forged internals and compound turbos.

Dyno-tuned at over 750WHP — dyno graph and full engine build sheet available for serious buyers.

Engine Upgrades:

• Performance Long Block (Forged Internals)

• Callies Durastar Forged Crankshaft

• Callies Compstar Forged Rods

• Mahle Pistons (Std. Compression)

• H13 Tool Steel Wrist Pins

• ARP 625 Head Studs

• Mahle Wave Stopper Gaskets (Grade C)

• Stage 1 Comp Cam (186/200)

• High-Pressure Keyed Oil Pump

• L5P Oil Cooler

• Randy’s Billet Flexplate

• Fluidampr Balancer

• Balanced Rotating Assembly

• Manton/XDP Pushrods & Valve Springs

• Reman Cylinder Heads

Turbo / Air / Fuel:

• Compound Turbo Setup

• Banks Intercooler

• PPE High-Flow Exhaust Manifolds

• Tuned for Daily Driving & High Output

Transmission (Built to Handle Power):

• Built Transmission

• Upgraded Torque Converter

• Shift Kit & Machined C3 Pressure Plate

• Molded Pistons, Updated Shift Plate

🛠️ Chassis, Suspension, Brakes & Exterior

• 4” Lift with Coilover Suspension – Unmatched comfort and control

• Kryptonite Ultimate Front End Package

• SS Center Link, Tie Rods

• Death Grip Pitman & Idler Arms

• Frame Gussets, Idler Support

• Red Head Steering Box

• Premium Cross-Drilled & Slotted Rotors

• LML Hydroboost Brake Upgrade

• Anzo Headlights

• Smoked Tow Mirrors

• AMP Research Power Steps

✅ Additional Details

• Clean title

• No corners cut — professionally built and tuned

• Stored with care, adult-owned, never abused

• Comes with dyno sheet & custom engine spec sheet

• Less than 4,000 miles since full build

💲 Price: $65,000 – OBO

Priced well below the build cost. Open to serious offers. No trades