Hi all, I have a 2003 H6 Outback Estate with a head gasket/crack issue and a 2002 similar car MOT failure with good engine. The VIN numbers are slightly different  - perhaps slight upgrades - my question is will the older engine fit the later car?

If so is the best option just the power unit or engine/gearbox as 1 unit.

 

Thanks for any advice

They both BH generation outbacks so should be easy swap .
Just look for any visual component differences and swap components/ sensors/wiring harness if find some differences .
Do engine only assuming your transmission in good working order .
It fairly easy process pulling engine on these, work on donor car first and learn from that .
Few stubborn bolts and actually getting engine moving from transmission is the usual hang ups .