| According to KJP, a Z spec motor is basically the engine the factory raced in 96, 97 and 98 immediately prior to going to the testastretta lump. So it's a 996 with a deep sump motor, sand cast crankcases and 30/36mm valves (I may be slightly wrong on this, but it's def NOT 32/38mm.
So now we all know - or do we............................ |