Amazingly, the camshaft, rods, and pistons were all left stock.
Ford's fabled 7.3-liter "Godzilla" V8 engine has proven to be capable of producing higher levels of power than anyone ever imagined. The V8 pushrod engine is offered in the Ford F-Series Super Duty pickup trucks, where it produces 430 horsepower and 475 lb-ft of torque.
Now that Ford offers it as a crate engine, Godzilla has been used to power some unique restomod projects. Thanks to some modifications, former Ford Racing director Brian Wolfe managed to extract 789 hp from the V8 pushrod for his Fox-Body Mustang drag car project without resorting to forced induction.
Ford is also planning to sell a more powerful Megazilla version, but Merkel Racing Engines has already extracted over 1,000 hp from the pushrod V8 by adding a pair of turbochargers and, well, not much else.
With an upgraded throttle body and OBR Map calibration, the naturally-aspirated 7.3-liter V8 generated 540 hp when Merkel Racing Engines hooked it up to a dyno. That's already a hefty boost over the stock engine's 430 hp output. To boost the output even further, a pair of 7875 VS Racing turbos, twin intercoolers, and a set of 1,000-cc injectors were installed.
Running at a boost pressure of 15 psi, this twin-turbo setup cranked up the output to an astonishing 1,114 hp at 5,800 rpm - that's over twice as powerful as the stock engine. Torque, on the other hand, peaked at 1,037 lb-ft at 5,400 rpm. What's even more impressive is that all of the internals were still stock: the standard camshaft, rods, and pistons were all left untouched. However, the fuel injectors were changed as they ran out of fuel.
It's not clear what Merkel Racing Engines plans to do with this uprated, twin-turbocharged 1,114-hp Godzilla engine - let's hope it gets used for an unusual engine swap project in the future.