Does anyone know if the short block from an 03 Subaru Forester 2.5 SOHC with the dual cylinder exhaust ports uses the same short block as an 04 Subaru Outback 2.5 SOHC with the single cylinder exhaust port? I have the short block that came from the Outback and the cylinder heads that came off the Forester and was hoping I could combine the two to make a complete motor. If anyone could tell me whether they are compatible I would appreciate it.