The Chevrolet Corvette has been known as America’s sports car since it first made its debut back in 1953. In the 67 years that have followed, no car has rivaled the Corvette on track and on the road quite as much as the Porsche 911. Despite decades of success backing both models, the two sports cars take very different approaches to performance. Everything from cylinder count to engine location is varied between the two. That is unless you are talking about TK Autosports’ LS7 V8-powered Porsche 911.
First noticed by the folks at Engine Swap Depot, this car started life as a 2007 Porsche 911 Turbo S. This Porsche is aptly known as the “Green Monster”, and was transformed into a GT2 RS clone at some point. The all-wheel drive system was ditched, and the flat-six motor was upgraded extensively. The new engine didn’t last terribly long however, and TK Autosports soon received the car as a trade-in towards a new build. After a few months of mulling over what to do with the exotic roller, the idea hit.
The team settled on purchasing an LS7 V8 crate engine from GM, which has since been upgraded with a more aggressive camshaft. The resulting 7.0L engine should sit in the neighborhood of 540 horsepower, which is a slight bump up from the 911’s factory rating of 523 horsepower. The crate motor was installed into the rear of the Porsche with the help of a Renegade Hybrids swap kit. Despite being a massive 427 cubic-inches, the LS7 actually saves 200 pounds over the stock engine. The six-speed manual transaxle is retained from the 911’s original powertrain.
This LS7 V8-powered Porsche 911 has also been fit with quite a few upgrades aimed at slashing lap times. The car now weighs just 2,905 lbs, thanks to its carbon fiber hood, front fenders, roof and doors from a 911 GT3 Cup Car. A StopTech two-piece rotor kit has also been installed, with six-piston calipers up front and four-piston units out back. Grip levels are assisted by the massive motorsports rear wing out back, as well as the utterly thicc 345-mm rear tires.
Porsche 911 owners tend not to be huge fans of projects like this, but we’re not sure anyone can be mad at that glorious LS7 V8 exhaust note. If you want to see this crazy Porsche 911 in action, check out the video by the Good Life 777 YouTube channel below.