Although one can classify both the Ford Mustang and Porsche Cayman S as “sports cars”, the two vehicles share little else in common aside at first glance. But what happens when the two cars cross paths in an unholy union of metal fabrication, German chassis design and raw American V8 horsepower? Fortunately, Florida has once again provided the answer to a question nobody was asking until now.

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Power By The Hour Performance posted video of a Coyote 5.0-powered Porsche Cayman S that came in for an engine tune and dyno test, and the shop owners were as surprised as anyone. Lo and behold, this magnificent monstrosity not only exists – it makes a lot more power then when it first left the showroom floor.

The story we’ve pieced together so far is that the Cayman’s owner looked into replacing the original 3.4-liter flat-six, and came away with an absurdly high quote. With used replacement motors fetching $13,000 or more, it isn’t hard to imagine an estimate around the $20,000 mark.

Thus came the idea to fit a 5.0-liter Coyote engine into the Porsche instead. And as fate would have it, Ford’s lauded V8 fits perfectly into the Cayman.

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When we say “perfectly”, we don’t mean that there wasn’t some serious fabrication work done here. But with a Coyote engine being half the cost of the flat-six, this leaves a lot more of a financial leg to stand on for fabrication costs, while boosting power output by quite a bit.

Right off the showroom floor, the Cayman S is rated at 257 horsepower and 218 lb-ft of torque; but Power By The Hour Performance laid down a pass on the dyno, reaping 424 horsepower and 364 lb-ft of torque – an increase of more than fifty percent on both measures.

And for those of you worried about the original weight distribution, worry not – as the Coyote engine weighs approximately the same amount (450 pounds) as the Cayman’s original flat-six. Yes, it is taller, which means the center of gravity is higher (and the weight distribution is almost certainly off by some degree), but probably not a terrible amount either.

Now all we need to see is this Coyote powered Cayman lined up against a stock model, and watch the crying and gnashing of teeth from the German fanboys.

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