1997 legacy 2.2

[legacy19972.2]

is a 2.2 from a 1997 and like a 2.5 from a 2002 a direct swap ?

[mike-tracy]

Nope! even a 1999 Legacy 2.2 isn't a direct swap

[Go Mifune]

This is from Ken who may still be on here. You can also use the block from that 2002 2.5 you mentioned but you have to use the DOHC heads and intake to avoid changing out the wiring harness. This is only from what I've read over the years so proceed with caution.
Ken’s latest secret sauce
97-99 EJ25D heads
97 EJ20D cams.
96 EJ25D intake manifold.
EJ222 bottom end and head gaskets.
MSD ignition coil with WRX plugs gapped to .052.
Grimmspeed intake manifold spacers.
96 intake piping.
UEL header and 2.5 catback.
Lightweight crank pulley.

[mike-tracy]

He asked for a direct swap