We can (hopefully) all agree that the G8 was the best car to wear the Pontiac badge in, well, ever. In its most powerful GXP trim, the Zeta-based rear-wheel-drive sedan featured a 6.2-liter LS3 V8 — the same engine used in the fifth-generation Camaro SS and sixth-generation Corvette and Corvette Grand Sport. Some of those GXPs were outfitted with 6-speed manual transmissions, making them rather rare and very desirable thanks to the winning powertrain combination. However, the 415 horsepower produced by the system just might not be enough for everyone.
Enter the 7.0 liter LS7 — arguably one of the best engines in the world, except for the purposes of fuel economy. So when it comes to motor swaps, this is the go-to hunk of metal to stick in an engine bay of any kind. It then comes as no surprise that the original owner had his beloved 2009 G8 GXP outfitted with the beastly LS7, and then improved on it even further with ported and polished heads, a forged crankshaft, a custom camshaft, and a Harrop cold air kit, among other things. It dyno’d at 487 whp and 463 wtq, which might be just enough prowess to pick up some groceries.
The owner is asking a swell $50,000 for the car, so if this is your cup of tea, then it may be well worth the price, considering the rare nature of the car and the various upgrades.
Had Pontiac survived another few years, the LS7 could have very well made its way into the G8, possibly as a limited-production top-of-the-line monster. But that’s not to be.
Thanks to LSXTV.com for the find!