I spoke to GEP recently about the imported blocks. I was told that aftermarket cylinder blocks cannot legally use identification marks such as GM, AMG, GEP, Navistar or even the 506 casting number. They are aware of the heads & blocks, and have evaluated them (cut them up to look at casting qualities and alloys). They wouldn't comment on them further.

By the way.... the forged-steel cranks are almost here....

Jim