1999 Mercruiser HI-Performance GM 377 EFI Engine Service Manual, Page 423Get this manual

1999 Mercruiser HI-Performance GM 377 EFI Engine Service Manual, Page 423

Quality of the image is intentionally reduced!

GENERAL
If Measurement is Less Than 15 in(381 mm) Engine requires elbow riser kit to be installedIf Measurement is Greater Than 15 in(381 mm) Satisfactory header height
NOTE: Refer to the