I recently acquired an si head and and intake mani. My friend told me that it would swap on my hf block without any modifications... is that true? I was worryed about the valves hitting, or anything else. Has anyone ever done this or heard of this? Any links or pics would be greatly appreciated.

 

I've heard of people doing it, but I just dont see how it would work, since the b6 pistons only have 2 valve reliefs per piston, and the SI head has 16 valves, (4 per cylinder)

I would do this, put the a6 head on your b6 block, (dont torque the head down, just run them down about 10ft lbs each.. install the t-belt and spin it over like 15 times. If it clears you maybe good to go..

Worth a shot!

Jeff