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Old 03-03-2008, 02:42 AM   #11
Scooby Specialist
Member#: 145145
Join Date: Apr 2007
Chapter/Region: MWSOC
Location: Rockford, Il
2006 wrx STi


Originally Posted by wrxG View Post
Its a used EJ257
I ordered stock bore size pistons, i did not check for clearances though. I didn't think i would have to since the pisons should be the same size right?
First, you need to check your bearing clearances! You can get "Plasti Guages" which are cheap ~$2.00 and very accurate. Second, you need a honed surface to seat your rings. Then best thing to do is to take the block halves to a machine shop to have them checked.
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MartinSTi05 is offline   Reply With Quote