Quote Originally Posted by adam perth View Post
holden just don't seem to know what is what.
they told me that a 82911 body and a JP or NP prefix would be XU-1.

there is nothing on this letter that confirms XU-1 either
The records don't show the first letter, so JP123456 would be in the records as P123456, so they wouldn't know if the number there was an NP or JP. It is extremely unlikely that a car would have been recorded with an NP number. This number was assigned to replacement engines and replacement short motors. The engine in the car was recorded when it went back to a GMH dealer for its complimentary service (1000kM or 500miles), which is why half of them aren't recorded as they didn't go back. If an XU-1 blew and engine in that period they would normally have been fixed with a block and piston kit and a new crank, and these were (as far as I can determine) stamped with the original number. It'd have to be a REALLY big failure to get a short motor (which I have been told were hard to get in a hurry) or a complete engine, and then have that NP engine in it if it went back for the first service. You'll pick an XU-1 NP in the records anyway as they'll be 4 digit not 6 eg P4567 not P123456.