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View Full Version : Rb25 series 1 vs series 2 block help


240sxdd
06-10-2011, 02:10 PM
Sup guys. So I'm planning to finally rebuild my s2 25 I ruined. Basically planning to pick up a shortblock. I have found a few motors that can potentialy be picked up. Only thing is s2 rb25s don't seem to be all over. Every shortblock and longblock iv found are series 1.

What i am wanting to know is 1; if I drop a series 1 longblock in, will my harness pluggin play? 2; if I shortblock it, will the head bolt right on just as series 2? 3; will there be any lack in performance if done?

Sileighty_85
06-10-2011, 03:14 PM
Engines are the same, harnesses are different, but you can just use a long block and You'll be fine