Originally posted by DemonSVT:
There is a Pro-mod Cougar running a 3L Duratec (turbo) with the stock block and heads. It makes over 1600HP.
He used the stock crank for quite a while. When he reached around 1400HP he finally twisted his original crank.
Wow, that's pretty interesting. Fourcam330, a member on SVTPerformance mentioned that the iron 5.4L MOD V8 blocks are good up to 1400hp before the bores distort. Just goes to show you the amount of engineering that went into the Duratec.
| 
