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  1. #1

    Default Marine Power Parts Sources?

    I recently purchased a 1995 Mainship with Marine Power 7.4L 370HP big blocks. They run fine but it has been 10 years since the risers were changed and I need to disassemble them and see if they need replacing. Does anyone know a good source of parts for these engines?
    They were described a "Frankenstein" engines with parts from Volvo, Crusader, etc and I have not located a good online source specific to these engines.
    Thank you

  2. #2
    Join Date
    Dec 2006
    Chaumont Bay, N.y., USA

    Default Re: Marine Power Parts Sources?

    Ayuh,.... Exhaust manifolds, 'n risers are somewhat an industry standard type a thing,....

    Look to after market parts when in doubt,...
    Osco, 'n Barr are US built exhausts, a simple measurement of the riser bolt spacin' oughta get ya what ya need,...
    Any Grease is Better,... Than No grease at All....

  3. #3
    Join Date
    Mar 2009
    Portland, Oregon,

    Default Re: Marine Power Parts Sources?

    Just a friendly FYI.......
    Although we will often see an Elbow being called a Riser, these are actually Elbows.
    Risers/Spacers fit between the manifold and elbow.

    Post a few photos of your engine and exhaust system for us.
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

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    Last edited by RicardoMarine; 02-17-2017 at 08:47 AM.
    Rick ... aka Ricardo..... AQ series Volvo Penta repair
    Portland, Oregon
    28' SDN F/B w/ twin Volvo Penta 5.7L DP drives

    "Intellectual growth should commence at birth and cease only at death." Albert Einstein

    Please... no PMs! Post your questions on the forum.

  4. #4

    Default Re: Marine Power Parts Sources?

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