<1990 SUBARU engines were basically all non-interference
1990 SUBARU engines 1.8L EJ18 and 2.2L EJ22 non-interference
1991 SUBARU engines 1.8L EJ18 and 2.2L EJ22 non-interference
1992 SUBARU engines 1.8L EJ18 and 2.2L EJ22 non-interference
1993 SUBARU engines 1.8L EJ18 and 2.2L EJ22 non-interference
1994 SUBARU engines 1.8L EJ18 and 2.2L EJ22 non-interference
1995 SUBARU engines 1.8L EJ18 and 2.2L EJ22 non-interference
1996 SUBARU engines 1.8L EJ18 and 2.2L EJ22 non-interference
1996 SUBARU engine 2.5L DOHC phase I interference (valve to valve)
1997 SUBARU engines 2.2L and 2.5L DOHC phase I interference
1998 SUBARU engines 2.2L and 2.5L DOHC phase I interference
1999 SUBARU engines 2.2L and 2.5L DOHC phase I interference
1999 SUBARU engines 2.5L SOHC phase II (Forester) interference
2000 SUBARU engines 2.5L SOHC phase II interference
2001 SUBARU engines 2.5L SOHC phase II and H6 3.0L EZ30 interference
2002 SUBARU engines 2.5L SOHC phase II and H6 3.0L EZ30 interference
2003 SUBARU engines 2.5L SOHC phase II and H6 3.0L EZ30 interference
2004 SUBARU engines 2.5L SOHC phase II and H6 3.0L EZ30 interference
2005 SUBARU engines all interference
2006 SUBARU engines all interference
2007 SUBARU engines all interference
2008 SUBARU engines all interference
2009 SUBARU engines all interference
2010 SUBARU engines all interference
2011 SUBARU engines all interference

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