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Thread: OMC 727 race motor

  1. #81
    RogerH
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    Default Kingston Drags

    Quote Originally Posted by jphii1 View Post
    Looking good Roger. How about bringing it to Kingston for display?
    Joe, Let me know when the Kinston, TN event is, as I'd like to be there. Not sure if I'll have the Molinari/Johnson available as I just took it completely apart today to start the hull restoration.
    Roger
    hinsdale@bellsouth.net or 423-452-0428

  2. #82
    Rude Wrecker jphii1's Avatar
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    Default

    It's the weekend of July 4th.
    Joe Horvath
    1994 Mirage Mod VP
    12" Rude Looper

  3. #83
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    Default decal

    Quote Originally Posted by jphii1 View Post
    Looking good Roger. How about bringing it to Kingston for display?
    Where did you get the Johnson Rotary decal?
    John

  4. #84
    Rude Wrecker jphii1's Avatar
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    It was on the ebay ad for the "rotary" a while back.
    Joe Horvath
    1994 Mirage Mod VP
    12" Rude Looper

  5. #85
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    Default I have a 727

    I have a 727 - got it with all the stuff that I purchased from Cees.

  6. #86
    Sam Cullis Mark75H's Avatar
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    Quote Originally Posted by swmjake View Post
    I have a 727 - got it with all the stuff that I purchased from Cees.
    Pictures?
    Since 1925, about 150 different racing outboards have been made.


  7. #87
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    Default 727 Photo

    Here is a couple of shots - I have the complete motor - I just need to re-sleeve one hole and put it all together.
    Attached Images Attached Images   

  8. #88
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    Great stuff
    Any idea on when it was raced and or tested?
    How many did they make?
    Thanks

  9. #89
    Preserving OMC Heritage LIQUID NIRVANA's Avatar
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    Quote Originally Posted by swmjake View Post
    Here is a couple of shots - I have the complete motor - I just need to re-sleeve one hole and put it all together.

    RARE RARE RARE -

    BRP should take a look at this. I was told that this motor was a a breakthrough in technology & many were astounded that OMC did not put it into production.

    Ken

  10. #90
    Sam Cullis Mark75H's Avatar
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    I think Jim Nerstrom went thru this motor pretty throughly

    Originally Posted by Nerstrom
    When the OMC & Mercury factory race wars moved from ON to OZ we found ourselves at a disadvantage to Mercury. Charlie Strang asked us to build the biggest displacement Loop V6 we felt we could put on the race course. OMC used three digit project numbers to track project costs. When we designed the first of many 3-cylinder race engines we were given project number 717 and because of its success became attached to numbers ending with “7”. The 727 Looper V6 was next followed by the Race V8 which was 757. The model numbers found on the serial number plate followed a different system, but that’s another story.

    The 727 was a totally new design with early versions having a displacement of 173 cubic-inches followed by 183 cubic-inch versions. The engines were given to factory sponsored drivers and for a short time raced along side the V8. Jimbo did all of the development testing and Fred Hauenstein worked on this engine just before he left for Mercury. Torque and power were spectacular but RPM was limited due to the long stroke.

    Jim
    My notes say the V-8 racers started in 1980 ... so the 727 would fall somewhere between 1977 and 1980-81.
    Since 1925, about 150 different racing outboards have been made.


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