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236 Re Power Comments / Suggestions

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  • 236 Re Power Comments / Suggestions

    Happy new year people! Getting ready to repower my 83 236. Looking to stay gas, the same foot print, and would like to go EFI. I’m leaning towards a complete crate 383 stroker. Let me hear your thoughts...

    Thanks,

    Jamie
    Brand new (to me) 1983 236

  • #2
    As far as staying in the same footprint, the Mercruiser 383 is your best bet. I like the 6.0 Crusader, but the issue is that requires rewokring of the engine mounts. If your engine mounts are original, theres a good chance they're due to be replaced anyways, so it may not be a big deal to change the footprint after all. Also, I don't have any actually quotes, but it appears that the 6.0 crusader is approximately 30%-40% more expensive then Mercruiser. I currently have a 2bbl Mercruiser 5.7. When the time comes, I will most likely be going with a crate 383 Mercruiser. Check out Michigan Motorz for some pricing and options.

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    • #3
      I am getting pretty close to repowering my 1979 236. Following! What area of the country are you located? I am in the Fort Lauderdale area.
      [br]DonK[br]Boca Raton, FL[br]1979 236IB: \'The Fish Tank\'[br]1979 Backcountry 18 \'Boner\'[br]<>< <>< <>< <>< ><> J[br]Redneck Troubleshooting:[br]1) If it moves, but ain\'t supposed to, use Duct Tape[br]2) If it don\'t move, but supposed to, use WD40[br]3) If that don\'t fix it, it\'s electrical![br]

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      • #4
        Ok so it looks like a 383 STROKER, MPI, and FWC is the pick. About 1/2 the price of an outboard. Looking at rebuilding the transmission while the motor is ordered and fabricating stainless engine mounts. I’m going re-wire what I can and paint the bilge, new hoses and hardware. Am I missing anything else while I’m in there? I will post picture and details along the way.
        Brand new (to me) 1983 236

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        • #5
          If you don't mind me asking, what was the breakdown of the cost. I am having stainless steel engine mounts fabricated in a couple weeks at the same time the fuel tanks are built.
          Attached Files

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          • #6
            Fuel injected 383 stroker for sure!

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            • #7
              I'm going to get the stainless flat bar and angle iron tomorrow. I'm fabricating them myself, easy to copy something in your hand. I'll let you know but I'm guessing material will be around 100-150 bucks.




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              Attached Files
              Last edited by off-line; 02-10-2020, 05:11 PM.
              Brand new (to me) 1983 236

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              • #8
                Let me know how the performance turns out with the 383. My boat is going to be painted in the next month and then well be putting her back together. We don't need a new motor, current motor is (6 years old with 200 hours) but if someone would make me deal on a new 383 mercruiser or 6.0 crusader I would drop one in the boat in a second.

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                • #9
                  Anyone have guidance on a new wheel with the 383? I had a lions saved but can’t seem to get there where this was discussed at length. Appreciate the help.

                  Jamie
                  Brand new (to me) 1983 236

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                  • #10
                    I think a lot of people were going with the acme wheel, 13x11.5 with over 300HP. Give acme a call. They have all the specs saved from over the years.

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                    • #11
                      Motor delivered, wheel delivered...working on the helm
                      Brand new (to me) 1983 236

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                      • #12
                        That 383 sure looks like fun!

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                        • #13
                          Ok boat is done and have run a full tank through the new setup. Electronic Mercruiser fuel management system says 1.6 gals per hour fuel burn. I can tell you I have burnt less fuel and gotten longer runs but these numbers from the mgmt system seem off to me. Boat cruises 3850 right at 30 knots. WOT, 5400 RPM saw 38 knots. The next fill up I'll track distance, that's really what matters in the end. All and all I could not be happier. I'll list the + and - below:

                          Plus:
                          Can not beat fuel injection and a push-button start!
                          The motor is quiet!
                          Dripless shaft worth every penny.
                          New 13x11.5 Acme wheel is right on.
                          Clean bilge
                          Rebuilt transmission smooth as silk
                          New wiring and station isolator amazing

                          Minus:
                          I'm about 20k light in the wallet

                          A short story. I live near and keep the boat on the same river as Ocean (now Viking) and Viking Yachts. Mr. Healy the founder of Viking buys and restores old inboards, he has done a few Wahoos and has three or so Criss craft. I was visiting a friend at the Viking Marina and Mr. Healy saw my boat and stopped - he really appreciates the mako lines. Long story short he said he could not build, an inboard 23 like the 236 for less than 80-90 grand his cost. If you don't know boat markups but they push 50-75%. so my 27K invested in my 2020 236 is not really a minus right! Let me know if I can answer any questions, I'd be happy to help.





                          Last edited by off-line; 05-29-2020, 02:43 PM.
                          Brand new (to me) 1983 236

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