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  1. #31

    Default Re: older 4 cylinder mercruiser Identification?

    A stupid question to y'all, obviously y'all know your motors. Did mercruiser in the 60's-70's make a 3.0L ? Or where they GM 120-140's ?

  2. #32

    Default Re: older 4 cylinder mercruiser Identification?

    The 140 came out in 1968 this is the 3.0, 110 hp version of the 2.5 came out in 1963. If you look in the parts section here you can search all years and engines gives you a decent idea of what engines/engine version was made when .

  3. #33
    Join Date
    Dec 2006
    Location
    Chaumont Bay, N.y., USA
    Posts
    5,896

    Default Re: older 4 cylinder mercruiser Identification?

    Quote Originally Posted by Dieter View Post
    The 140 came out in 1968 this is the 3.0, 110 hp version of the 2.5 came out in 1963. If you look in the parts section here you can search all years and engines gives you a decent idea of what engines/engine version was made when .
    Ayuh,.... Both of which are based on the ole Chevy 235 I-6,.....
    Any Grease is Better,... Than No grease at All....

  4. #34

    Default Re: older 4 cylinder mercruiser Identification?

    This link has some detail about 3.0 flywheel and coupler configurations in the lower part of the engine listing https://www.michiganmotorz.com/base-...il-p-4531.html

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