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Old Apr 1, 2004 | 12:19 PM
  #11  
westcoaststyle's Avatar
westcoaststyle
Still here... sorta...
 
Joined: Sep 2000
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From: CO
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Si has a B16A2, EX has a D16Y8.

They are engine codes. They're stamped on the front of the block above a little metal tab right where the tranny bolts to the block.
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