I just recently found out that I can not do a mini me on my hf crx with a d15b6 because the b6 block is set up for 8 valves and a z6 head has 16. I already purchased the head, intake, tb, gaskets, timing belt(z6),etc. My question is since the block is not set up for it can I just replace the block with one that is set up for a mini me conv. or will I run into different problems with wiring or sensors on the blocks? IF I can just swap out the blocks which are the ones I can use? I would really appreciate any help or feedback. also are the hf and si egr systems different?