Hi guys, thanks for your help in advance with my first post. I own a BF1 built June 2006 and am wondering if anyone has documented confirmation that my car definitely is fitted with the F6 bottom end. Id really like to know for sure before I start modding the car. I have heard different dates for the stronger bottom end including only BF2's came with them. I have a friend who works in the service department at my local Ford dealer and he did a few checks for me with a result that only BF2's were fitted with F6 internals. All help much appreciated!