DIY Marinizing

A forum to discuss "do it yourself" marinizing of engines / conversion of automotive engines to marine use.

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  1. Jeff
    Sticky

    Important Disclaimer: Safety comes first

    Jeff, Sep 3, 2004
    Replies:
    4
    Views:
    33,163
    Richard Petersen
    Dec 12, 2004
  2. Ward

    Weed eater engine conversion

    Ward, Jun 2, 2003 ... 102 103 104
    Replies:
    1,551
    Views:
    1,398,577
    Thin water
    May 29, 2016
  3. Guest

    Auto engine marinization

    Guest, Jun 10, 2002 ... 14 15 16
    Replies:
    231
    Views:
    322,661
    Machineman
    Jul 1, 2010
  4. mmanning63

    4.3L Vortec mercruiser cracked block - swap with automotive engine block?

    mmanning63, Jun 19, 2010 ... 4 5 6
    Replies:
    75
    Views:
    169,832
    powerabout
    Aug 22, 2011
  5. pistnbroke

    Thai Longtail/mudmotor With 6hp Lifan/honda

    pistnbroke, Feb 26, 2009 ... 5 6 7
    Replies:
    94
    Views:
    133,206
    etott
    Jun 1, 2016
  6. jakefrith

    Why don't boats have gears?

    jakefrith, Oct 28, 2008 ... 5 6 7
    Replies:
    90
    Views:
    98,103
    Yellowjacket
    Feb 2, 2013
  7. CDK

    Marinizing VW turbodiesel engines

    CDK, Aug 31, 2007 ... 2 3 4
    Replies:
    45
    Views:
    96,067
    ben2go
    Apr 30, 2019
  8. Ken Gasch

    Automobile Transmission, why not?

    Ken Gasch, Oct 5, 2004 ... 7 8 9
    Replies:
    125
    Views:
    94,673
    black_sails
    May 10, 2016
  9. bnhk88

    homemade electric outboard

    bnhk88, Aug 11, 2009 ... 2
    Replies:
    17
    Views:
    91,825
    pistnbroke
    Dec 27, 2017
  10. jchronister3468

    how do i build a boat motor with a lawn more engine

    jchronister3468, Aug 7, 2005
    Replies:
    13
    Views:
    85,143
    1ghandi
    Jul 14, 2006
  11. daniel2

    GM LS1 for marine use

    daniel2, Nov 23, 2005 ... 2 3 4
    Replies:
    54
    Views:
    76,490
    julius750
    May 29, 2011
  12. kistinie

    Making a high efficency 3 Kw DC Generator

    kistinie, Mar 8, 2009 ... 8 9 10
    Replies:
    148
    Views:
    68,550
    apex1
    May 5, 2009
  13. moTthediesel

    VW diesel marine conversions

    moTthediesel, Apr 6, 2006 ... 3 4 5
    Replies:
    69
    Views:
    63,499
    CDK
    Sep 1, 2010
  14. Jeremy Clarkson

    Lawn mower engine outboard motor?

    Jeremy Clarkson, Aug 17, 2011 ... 2
    Replies:
    25
    Views:
    63,372
    pistnbroke
    Sep 4, 2011
  15. greendeane

    Marinizing Rotary engine

    greendeane, Aug 13, 2008 ... 2 3 4
    Replies:
    50
    Views:
    59,033
    Kitrods
    Jun 26, 2021
  16. dorong

    silencing Weed eater engine

    dorong, May 25, 2012 ... 2 3 4
    Replies:
    49
    Views:
    58,677
    tom kane
    May 30, 2012
  17. MihaS

    VW/AUDI 3.0TDI marinising

    MihaS, Nov 2, 2011 ... 2 3 4
    Replies:
    53
    Views:
    54,298
    Skravo
    Aug 18, 2024
  18. Eric G

    454 "Crate" HO to Marine

    Eric G, Jul 10, 2005 ... 2 3
    Replies:
    38
    Views:
    54,079
    stonebreaker
    Nov 24, 2006
  19. simplebobby86

    Angle of engine on a longtail straight shaft mud motor?

    simplebobby86, Oct 24, 2009
    Replies:
    6
    Views:
    47,819
    simplebobby86
    Oct 25, 2009
  20. parkland

    Truck diesels

    parkland, Nov 7, 2012 ... 6 7 8
    Replies:
    109
    Views:
    44,270
    black_sails
    May 11, 2016
  21. HelicopterJohn

    6 HP briggs & Stratton outboard conversion

    HelicopterJohn, Jul 1, 2012 ... 2 3
    Replies:
    32
    Views:
    41,010
    evidrine
    Mar 14, 2013
  22. bigshrimpin

    Mercedes 300D Marine Conversion

    bigshrimpin, Aug 9, 2006 ... 2
    Replies:
    20
    Views:
    38,731
    sailinphelan
    Sep 10, 2008
  23. Dave T

    11 HP briggs outboard conversion

    Dave T, Oct 28, 2011 ... 2
    Replies:
    20
    Views:
    37,746
    pistnbroke
    May 7, 2012
  24. FAST FRED

    DIESEL TRUCK engine Marinization

    FAST FRED, Aug 21, 2004 ... 2 3
    Replies:
    31
    Views:
    37,454
    Redsky
    Jul 7, 2006
  25. muddin redneck

    24 Hp Mudmotor Finally Finished

    muddin redneck, May 16, 2010 ... 2
    Replies:
    25
    Views:
    36,628
    evidrine
    Mar 16, 2013
  26. Rangerspeedboat

    What is propellor slip?

    Rangerspeedboat, Apr 18, 2009
    Replies:
    10
    Views:
    36,413
    gonzo
    May 19, 2009
  27. Diesel Dan

    Marinizing Small Industrial Diesels

    Diesel Dan, Sep 23, 2004 ... 2 3
    Replies:
    32
    Views:
    35,456
    weelilboats
    Aug 12, 2009
  28. timswait

    Narrowboat Engine

    timswait, Jul 4, 2008 ... 2 3
    Replies:
    36
    Views:
    34,821
    timswait
    Aug 11, 2009
  29. curtis73

    Marinize a Subaru?

    curtis73, Sep 1, 2006 ... 2 3
    Replies:
    42
    Views:
    33,580
    S V
    Oct 3, 2022
  30. mudman

    Mud Motor Drawing

    mudman, Jun 11, 2009
    Replies:
    3
    Views:
    31,594
    ben2go
    Aug 1, 2009
  31. sailingmonica

    Volkswagen Jetta 1.6 - how many HP - prop calc

    sailingmonica, Oct 20, 2009 ... 4 5 6
    Replies:
    77
    Views:
    31,223
    sailingmonica
    Jan 19, 2017
  32. pistnbroke

    Long Tail ..a question of balance

    pistnbroke, Feb 8, 2009 ... 2
    Replies:
    15
    Views:
    28,041
    Landlubber
    May 26, 2013
  33. pandman

    VW 1.9L PD TDI Marinizing

    pandman, Apr 21, 2014
    Replies:
    14
    Views:
    26,919
    roedel
    Mar 11, 2015
  34. bnhk88

    compressed air propulsion

    bnhk88, Aug 8, 2009 ... 2
    Replies:
    25
    Views:
    24,613
    apex1
    Sep 19, 2009
  35. brian eiland

    Isuzu Diesel Engines

    brian eiland, Dec 1, 2004
    Replies:
    6
    Views:
    24,593
    BillyDoc
    Aug 5, 2005
  36. boat

    lawn mower

    boat, Nov 20, 2004 ... 2
    Replies:
    19
    Views:
    24,578
    Bowbender8
    Sep 22, 2005
  37. feetup

    Air Cooled Inboard?

    feetup, Nov 8, 2006
    Replies:
    10
    Views:
    24,502
    seo
    Mar 8, 2007
  38. ericklee

    chevy small block (305) rebuild

    ericklee, Oct 10, 2006 ... 2
    Replies:
    20
    Views:
    23,059
    PAR
    Nov 29, 2006
  39. Hiptrip

    Engine marinising

    Hiptrip, May 22, 2003 ... 2
    Replies:
    19
    Views:
    22,590
    gonzo
    Jun 4, 2003
  40. AggieBoater

    1976 30 'Trojan Sportfish Repower Decisions

    AggieBoater, Nov 13, 2004 ... 2
    Replies:
    18
    Views:
    21,340
    free
    Mar 30, 2008
  41. fishon91

    closed cooling outboard?

    fishon91, Feb 22, 2011 ... 2
    Replies:
    26
    Views:
    21,228
    pistnbroke
    Feb 25, 2011
Showing threads 1 to 40 of 275

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