Hello joshuaho96, I did come across the GURU info, but I only found that they do kits for the ZF 8 to a BMW engine. I prefer to stay with the ZF 6 rather than the 8 speed ZF - the 6 speed is plentiful here from behind a BARRA. HA - if masking tape and rope was strong enough to hold the ZF to the RB - ALL my problems would be gone - HA. Mechanically - possibly there are similarities between the ZF 6 and ZF 8 - but the bolt up bit is the crucial bit. More research is required by me. I did note that possibly I can start with a RB25 twin cam head and get it to work with the RB30 block - now I just need to find a suitable head to start with. Thanks.