there are 5 types of EJ20 blocks
Open Deck as found in all naturally aspirated 2.0 Litre imprezas.
Open Deck EJ20G/EJ20K as found in all wrx's and some STI's till 1998
Open Deck EJ205 as found in wrx's 1998-2005
Closed Deck as found in early liberty RS's, BG5/GTB twin turbo liberties till 92, and the version 3 STI in 1997
Semi-Closed Desk as found in EJ207 from 2001 through till present.
All engines have varients of piston type/quality, compression ratios, i'll post these shortly.
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Long live the WRC
Last edited by tuna; 02-07-2006 at 09:16 AM.
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