345kw of V8 Windsor Power
Join Date: Jul 2001
I am not sure about the difference between the au1 and au2 uppers, there wan't any major differences done though, maybe it was just becasue the au1's had a "5L V8" little plate on the upper where the series 2 had the larger BBQ type plate which covered most of the engine. The auIII had the inlet port opened from 65mm to just over 70mm to match the 70mm throttle body used. The lower on the au3 was also port matched to the heads.