I went to take some pics of this 1991 tt engine that the nissan dealership has and its not a z32 engine . I dont know what it is but Don hit it on the head when he said look on the block for 30p or f65 , it is an f65 . Nissan still has no idea what it is and they told me their tech line doesnt know . The best they could tell me was " Japan does some wierd stuff and tech said they were probably cylinder compression sensor wires " . I told them what Don had said about the wires being detonation sensor wires and it was as if I turned a light on for them . I told them to run the block numbers to see what it was because it wasnt gonna work in that 91 z they had. Now im curious and wanted to update yall with some pics . Some of the pics were blurry but the block is stamped with F65
Follow Ups
Update on yesterdays post (Wires going into heads) - Xteam300TT (South Tx )12:28:19 05/31/13