This Porsche 911 Is Powered by an 8.2-Liter Cadillac V8
We've seen some pretty wild engine swaps over the years, but this is definitely one of the craziest. It's a seemingly stock-looking 1981 Porsche 911 Targa that's had its flat-six replaced with an 8.2-liter V8 taken from a 1970 Cadillac Eldorado. Sleeper of the year? More like sleeper of the century.
Judging by the pictures on eBay, this swap looks incredibly well-done. Everything appears factory stock from the outside, save from some extra engine cover vents and an "8.2-Litre" badge on the rear. The owner, who performed the engine swap, said it was actually fairly simple to fit that massive engine. From the listing:
After removing the Porsche engine [and] transaxle it was simply [a] matter of building motor mounts, CV joint adapters and axles, a custom radiator and exhaust system. The Cadillac package has a single front and dual rear mount setup that was easily adaptable to the stock Porsche mounts.
The engine, which made 400 horsepower from the factory, now sports forged rods and pistons, as well as aluminum heads. Today it makes 537 horsepower, which is a whole lot, especially for a car that had roughly one-third of that from the factory. Getting that twist to the wheels is a GM TurboHydramatic 425 automatic transaxle.
Remember: The '70 Eldorado was front-wheel drive with a transaxle gearbox. Which means that, as far-out as this swap is, it was really just a matter of spinning the Cadillac drivetrain to face the other direction and connecting the Porsche's rear wheels to the Caddy transaxle. We're sure there was a lot more involved in pulling this off, but this gargantuan drivetrain was actually more well-suited to this swap than a V8 from a rear-drive car would have been.
If you're like us, you're probably wondering how on earth that massive engine fits in a tiny engine bay originally designed for a flat-six. Well, it doesn't. The firewall has been completely cut away to make room, and now the only thing separating the motor from the cabin is a piece of heat shield made to look like a bunch of luggage sitting in the cabin. It's genius, really.
Now for the good part. The car is currently for sale, which means you can own this outrageous machine. It's currently for sale on eBay Motors with a current high bid of $16,500 with reserve not met and one day remaining left to bid. Better act fast before this one-of-a-kind torque monster disappears forever.
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