Every single Porsche 991 GT3 will get a new engine due to the engine fire issue arising from cracked blocks spilling oil. Apparently just changing what Porsche identifies as faulty connecting rod bolts (item number 7 pictured) would not appease owners or preserve the 991 GT3's value as well as a brand spanking new motor so roughly ~700 GT3's are getting their motors pulled.
Every previous generation GT3 had a flat-6 engine block designed by Hans Mezger. He was an engineer famous for designing Motorsport motors and designed what became known as the GT1 engine block for Porsche. This engine block served as the basis for the 996 and 997 GT3 models as well as the 996 Turbo, 996 GT2, 997.1 Turbo, and 997 GT2. This engine block was originally conceived for the Porsche 911 GT1 which won Le Mans in 1998.
The new direct injected Porsche engine blocks have not won Le Mans, let's put it that way. The block could not even survive the first year of 991 GT3 production. Somebody has to say it, Porsche deserves this for cutting costs and taking race bred parts out of the street cars. They deserve this and as does any other manufacturer who produces a street car using their race cars name without the race cars most vital parts.
A Porsche spokesperson stated, "We are in the process of validating the revised par. We will be replacing the engines in each of the 911 GT3s that have been built thus far."
Would this problem have ever reared its head if the GT3 was sporting an engine tested in the rigors of Motorsport? Nope. But Porsche will fix it and we will move on. There still is something here that makes you wonder if the cheaper route really comes out cheaper in the end.