Block Numbers

Discuss the RB20, RB25 and RB26 series engines.
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SteveRB240sx
Posts: 28
Joined: Thu Jan 21, 2010 1:06 pm
Car: 1990 240sx -R32 RB26Dett powered.

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Ive done a little bit of looking on this but haven't been able to find much on it. Basically, Im trying to figure out if my RB26 is an early or late production R32 engine, with out taking the oil pan, oil pump, and crank pulley off for the time being. Is there a way to look at the numbers on the block and figure out the production batch or years? Ive found a few things talking about differences on RB blocks and such but nothing else really. Any information would be appreciated.

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User avatar
SteveRB240sx
Posts: 28
Joined: Thu Jan 21, 2010 1:06 pm
Car: 1990 240sx -R32 RB26Dett powered.

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So...Is this not able to be done?
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