Water Under The Hood? This 2002 Porsche 911 Is Powered By A 6.0-liter Pontiac G8 GT V8

The ingenuity of car enthusiasts never fails to amaze. Take, for example, this 2002 Porsche 911 Carrera Coupe, whose flat-six has been removed. That’s not too odd, but what is unusual is that the seller somehow managed to stuff a 6.0-liter V8 in the back of the car.

That is, to be specific, the 6.0-liter L76 V8 from a 2008 Pontiac G8. From the factory, the engine was rated at 362 hp (270 kW/367 PS) and 391 lb-ft (530 Nm) of torque. That’s all well and good, but if you’ve got the engine out anyway, you might as well modify it.

At least, that seems to be what the person who modified this 911 thought, because the engine has also been given an LS9 camshaft, LS6 valve springs, LS7 lifters, an Improved Racing C6 Corvette baffled oil pan, a Mellin high-pressure oil pump, aftermarket fuel rails, dual oil catch cans, a custom four-inch air intake, a GM E38 engine control module, a Vitesse Motorsports throttle controller, and more.

It also has a Porsche central radiator and Stuttgart Muscle engine mounts, to ensure everything holds fast. The car also gets BBK Performance ceramic coated headers, a custom 2.5-inch exhaust with aftermarket catalytic converters, as well as a custom engine to transaxle adapter and flywheel to connect the V8 to a six-speed manual transmission.

The seller has not had a chance to put the car on the dyno, but anticipates that it now makes more than the 362 hp the engine was rated at from the factory. With 94,000 miles (151,278 km) on the engine and 121,600 miles (195,696 km) on the car, everything should still be in decent condition.

The car has spent most of its life in the South and has a clean, accident-free Carfax report. There are, however, one or two flaws, including scratches and dings, and the paint on the engine lid was imperfectly matched to the rest of the car.

That may mean it won’t win any Concours events, but with a GM V8 under the hood, it was never going to anyway. Sold without reserve on Cars and Bids, this piece of automotive ingenuity (or engineering sacrilege, depending on your point of view) may be worth bidding on.