I'm in the planning stages of building a 4.6 to swap into my sixer that will eventually be stroked to a 302. I'm between shelling out for a 4.6 from an explorer (which will run me roughly $1000) or a Teksid 4.6 from a 98 cobra (which will run me about $300). I know the Explorer engine would be a more straight-forward swap since it's essentially the same modular engine as the 05-10 GT, but I've been told the Teksid block is able to handle more power, and with it's lower cost that makes it sound pretty nice. My question is; What would it take to use a Teksid block in an s197? I know the motor mounts would need modification, but I'm not totally sure what else. Would I be able to use 3v heads and intake manifolds? If I can get away with saving $700 on the block, that would be great. Thanks in advance for any help. This is my first engine build and it's going to be a learning experience for me.