The 5EFE injectors are the same size as 4EFE which are 195cc. It is the 5E-FHE injectors which are different, being 225cc. For the record 4EFTE injectors are 295cc. Even though the 5EFE engine can run with the 4EFE ecu, it is not running properly as the 5E is a lower compression ratio (9:4:1 vs 9:6:1) and will have slightly different fuel/timing maps as intended. Joz