what is the normal operating temp for 305 small block mercruiser chevy?

Discussion in 'Gas Engines' started by mattcat79, Aug 6, 2006.

  1. mattcat79
    Joined: Jul 2006
    Posts: 7
    Likes: 0, Points: 0, Legacy Rep: 10
    Location: pensylvania

    mattcat79 Junior Member

    I was just wondering if anyone knew what the normal operating temp was for 305 small block chevy mercruiser io engine. Thanks - any help would be appreciated:cool:
  2. comptiger5000
    Joined: Aug 2006
    Posts: 8
    Likes: 0, Points: 0, Legacy Rep: 10
    Location: United States

    comptiger5000 Junior Member

    normal operating temp

    for a raw water cooled engine 130-150 F

    for a closed cooled engine 170-190 F (200 is the upper limit)
  3. Preformer 40
    Joined: Apr 2004
    Posts: 18
    Likes: 0, Points: 0, Legacy Rep: 10
    Location: Naples, Fl

    Preformer 40 Junior Member

    depends on tstat temp.
Forum posts represent the experience, opinion, and view of individual users. Boat Design Net does not necessarily endorse nor share the view of each individual post.
When making potentially dangerous or financial decisions, always employ and consult appropriate professionals. Your circumstances or experience may be different.