*Shown With Optional Upgrades

7.3L Godzilla 700HP Airboat Crate Engine

Estimated Cost $21,995.00

Our complete 445CI 7.3L Ford Godzilla 700HP 650TQ airboat crate engine package is dyno tested and ready for installation. This build features the cast iron 6 bolt main block, ecu, harness. Comes ready to install into your Airboat included alternator and starter.  All our Godzilla crate engines can be custom painted* “customers choice of color”. When researching you gear box let the supplier know that you will require a Coyote bell housing and plate. 

7.3L Godzilla Crate Engine 700HP Package Details

  • Fully Machined Ford 7.3L Cast Iron 6 Bolt Main Block
  • Block Painted With High Temp Ceramic Engine Paint
  • Ford 7.3L forged crankshaft
  • H-Beam connecting rods (Callies or K1)
  • Forged Performance Pistons (Mahle, Wiseco, or Diamond)
  • Complete Assembly Balanced (Internal)
  • Custom Ground Hydraulic Roller Camshaft
  • Hydraulic Roller Lifters (PFU)
  • Timing chain set
  • Zero Degree Timing Lock Out
  • Oil pump (Melling)
  • Ford 7.3L Godzilla Cylinder Heads
  • 2.170 8mm Intake Valves
  • 1.67 8mm Exhaust Valves
  • Beehive Valve Springs (Pac)
  • Valve Retainers And Locks
  • Ford Rocker Arms
  • Chrome Moly Pushrods
  • Head Bolts
  • Aluminum Timing (Holley)
  • Aluminum Rear Seal Housing
  • 7 Quart Aluminum Oil Pan (Holley)
  • Valve Covers
  • Harmonic Balancer
  • Holley Terminator X ECU
  • Performance Intake manifold (BTR Trinity)
  • Holley Fuel Rail Kit
  • 102mm DBC Throttle Body (Black)
  • Throttle Position Sensor
  • Idle Air Control Valve
  • Fuel InjectorsIntake Air Temperature Sensor
  • Crankshaft Position Sensor
  • Camshaft Position Sensor
  • Engine Coolant Temperature Sensor
  • Wide Ban O2 Sensor
  • Main ECM Engine Wiring Harness
  • ECM Power Harness
  • Coil Pack Harness
  • Fuel Injector Harness
  • Misc Harness Extensions (Clean Install)
  • Coil Packs
  • Spark plugs
  • 8.5MM Plug Wires (MSD)
  • Oil And Filter
  • Water Pump
  • Engine Will Be Dyno Tested And Tuned For Optimum Performance
  • 1 Year 200 hour marine/airboat warranty


  • Additional Items:
  • Alternator bracket
  • 150 Amp alternator
  • Belt and hardware
  • K&N Universal Performance Air Filter
  • Front Y-Block With Fuel Hose
  • Universal Bypass Regulator
  • Rear Fuel Hose
  • Fuel Pressure Gauge
  • Starter With Bolts


7.3L Godzilla Crate Engine 625HP

Which Style Engine Should I Use? An Aircraft Engine Or An Automotive Style Engine?

While Aircraft engines produce a Lot of low RPM torque they are very expensive to buy and maintain. An automotive engine when designed correctly can achieve the same torque and horsepower at a much more reasonable cost. Maintenance parts can be purchased at most automotive supply stores and the cost is considerably cheaper.

We have developed several extremely durable engine combinations that will Mmeet almost everyones needs. These engine combinations feature forged pistons, roller camshafts, specialty valve train components, additional oil capacity, Etc. That have been tested time and time again to ensure there durability will stand up to the job. Most airboat engine manufactures are still using old technology that just simply won’t last very long to keep cost down, When in the long run will cost you more money. The engine packages that are listed come standard with fuel injection. With todays fuel containing so many additives and ethanol, carburetors just don’t last very long. For those of you that think fuel injection is not right for your application, We can downgrade the engine package to come with a carburetor.

Proformance Unlimited airboat engines are currently used by law enforcement, airboat charter services, and even saw service in specialty categories like the winter olympics.