Just to clarify... the only mods that I need to do to make a FG F6 engine fit into a BFII is to use the sump off the BF engine (what about the dipstick???). Do I need to get the dippy hole at the front of the block drilled so the dipstick actually reads the oil in the sump??? I have heard of people doing this mod, our FG F6 short motor was delivered yesterday and PANIC STATIONS when we realised that the dipstick is in the wrong spot and that the sump is back to front... Can anyone who has successfully done this mod shed some light on how you made it work....