Engine info - something new I learned

[lee]

Maybe you folks all knew this...I didn't.

Seems Subaru does not necessarily install the same sized pistons from the factory in any one given engine. Now maybe I'm wrong, but I think this is a pretty unusual practice. Does this work because of the inherent balance of the boxer engine?

Anyway, I post this as a caution for anyone thinking of a home rebuild...also might want to provide the info to whatever rebuilder you use if having the job done professionally. Seems like it would be of interest to those balancing/blueprinting as well.

So for you shade tree mechanics, watch which cylinder the piston came from...my reference is:

http://www.endwrench.com/pdf/engine/...esInfoSp00.pdf