View Full Version : SR20DET Engine Serial # what can it tell you?

01-05-2003, 05:26 PM
What information, if any, can you get from the number on the block of your SR ??

I was hopping to find out exactly what year my motor is,

mine says, SR20 673888A
it's a first gen blacktop

Is this the right number to look at? it's on the exhaust side, where the motor meets with the tranny.

01-06-2003, 03:30 AM

01-06-2003, 03:36 AM
It is only useful if you know what batch engines had what number... and this is very technical information that is only related to Nissan's own manufacturing techniques.


01-06-2003, 07:34 AM
Wow, first time somebody else has bumped one of my topics...

So is there anyway to find out what year my motor is?

01-06-2003, 03:23 PM
ask around and try to find out about this one GI fellow in virginia (or was it maryland).... i just remember that he was the guy to ask about SR20 engine block numbers back in '96 or so because he had a journal of info from nissan japan that had the intepretations of all the block numbers. i lost my contact source to him back in '98, but if you ask around enough, i'm sure you can find out how to contact him as i'm sure he's still around and has access to that info. (hint: ask the datsun guys... don't waste your time with 240 people)


01-06-2003, 05:10 PM
Lets go Scooby, it's time to solve another mystery.