Hello, As this is my first post here I'll start with an introduction. My name Is Sean, I am an 18 year student that is trying to do a V8 6-speed conversion to a 91 Coupe quattro. I live in Minnesota(USA). Alright now that's done.

I purchased some heads from an AKH code S8 motor of ebay.co.uk about 8 months ago. The heads were a steal at 56 GBP, so I now have these heads sitting in crates in my garage. My question is does any one know the difference between a AKH/AHC motors and the ABZ's that came in the A8's? I am interested in building a motor for these heads because there aren't many high torque audi v8's over here.