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Tired of being passed

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  • Tired of being passed

    I love my 26 but, I'm really getting tired of being the last one there. I need opinions. Tuner, this is your specialty. I have a few options. All will need work and I don't mind spending the money to get what I want, which is a fast 26' Shamrock. Don't tell me it can't be done. There is a boat just like mine in Swansboro, that passes me like I'm paint on a fence. He has for years. I don't know who he is. He never answers me on the radio or even waves as he blasts by. So, this is what I have. A 454 FI, a 383, a 6bta-m, a few 351s. Don't really want the diesel. My engine guy always says, "theres no replacement for displacement" but can I get the same power with less weight and a straight drop in, from the 383 with new heads and FI ?
    1988 26' cuddy
    1975 20' open
    16' Sandpiper
    14' Certified Fiberglass

  • #2
    Good thread. This will be interesting.
    Mark
    1990 26’ open 351W Indmar
    1987 30’ Blackwatch twin 351W Crusaders (sold)

    Comment


    • #3
      It definitely will be a good one.
      I'm going with the 383 stroker!
      And with a nice set of heads it should make some good torque.
      Trickflow makes a nice head.
      Richard
      78 20' cuddy
      2004 pcm 351 HO FWC
      BW 1:1

      Comment


      • #4
        I would look at the prop and gear. With a power increase you might have to change a few things. Now you get into prop clearance, shaft size, and reduction ratios as well.
        '78 20ft Cuddy
        Mercruiser 350 FWC preVortec w/Carb

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        • #5
          Refresh my memoryJerry, what is the set up in it now?
          Karen
          Punxsutawney, Pennsylvania
          1986 Shamrock H/T with RWC 330 hp PCM, dual hydraulic helm
          1992 Mako 211CC w/Mercury Optimax 175
          3 other smaller OB boats and a trusty old canoe...

          Comment


          • #6
            Typical 351 in there now, runs great. Ed, I hear ya on the gear and prop clearance stuff. I know George put some 454s in the 26'ers and I have that info. Maybe Nay could help here?
            1988 26' cuddy
            1975 20' open
            16' Sandpiper
            14' Certified Fiberglass

            Comment


            • #7
              I'm waiting on bated breath too! I'm always looking for the "best" solution. As for which option, I thinking the diesel because when you get bigger the diesel is smaller per HP. Think off shore racers, Turbo charged diesels turning out-drives.
              Last edited by Ship; 08-11-2020, 09:09 AM.
              Atlantic City, NJ
              1982 Cuddy, Rebuilt 351 .060 rings, Edelbrock carb

              Comment


              • #8
                6.0 LS with Twin Ying Yang Spinny Thangs, and a tune. Good fuel economy and about 650+ hp when your into it. Torque = yup.
                Just wishin', and hopen', and dreamin'

                Comment


                • #9
                  Sometimes I just can't stop myself! Sacrilegious!
                  Click image for larger version

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                  THATS JUST WRONG!!!!!!!!!!
                  Its an old pic that I'm sure we've all seen.
                  Attached Files

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                  • #10
                    What speed are you getting and what speed do you want to reach?
                    Karen
                    Punxsutawney, Pennsylvania
                    1986 Shamrock H/T with RWC 330 hp PCM, dual hydraulic helm
                    1992 Mako 211CC w/Mercury Optimax 175
                    3 other smaller OB boats and a trusty old canoe...

                    Comment


                    • GREGK
                      GREGK commented
                      Editing a comment
                      Plaid. He wants to go to Plaid.

                  • #11
                    My 26 with a 383 stroker with a full load of fuel
                    and 2 people tips out around 30knots. It’s not the correct wheel as I’m not getting close to wot but with the correct wheel i should be in the mid to up 30s knots. I’m currently playing with wheels and should have another one next week that is hopefully about perfect . The current wheel is 16x16 with a heavy cup and cruise at 3400 is 25knots
                    1984 26 Cuddy- currently under construction
                    1977 20’ Cuddy- SOLD

                    Comment


                    • #12
                      What a difference the 383 stroker makes. We have the original 351 making 240hp in our 26 open. You are cruising at 25 knots we struggle to get that at WOT. While the old engine seems to run well it doesn’t seem to have the extra get up and go. When the time comes it will be a change not a rebuild considering it is a 30 year old RWC engine.
                      Mark
                      1990 26’ open 351W Indmar
                      1987 30’ Blackwatch twin 351W Crusaders (sold)

                      Comment


                      • #13
                        S. rebel. Thats what I'm talking about. What has been done to your 383? What boat do you have, exactly. Tower, enclosure, outriggers, etc. I would love to cruise at 25 Knots, or even 25 MPH. Positive proof it can be done. I actually had a long talk at the engine shop today. Take my 383, FI, aluminum heads, custom grind cam, higher compression and I will have what I want. My 351 is running perfectly so I won't make the switch til winter, but its going to happen.
                        1988 26' cuddy
                        1975 20' open
                        16' Sandpiper
                        14' Certified Fiberglass

                        Comment


                        • #14
                          GREGK
                          I was thinking ludicrous speed
                          Karen
                          Punxsutawney, Pennsylvania
                          1986 Shamrock H/T with RWC 330 hp PCM, dual hydraulic helm
                          1992 Mako 211CC w/Mercury Optimax 175
                          3 other smaller OB boats and a trusty old canoe...

                          Comment


                          • #15
                            Jerry, with our HT (which is heavily loaded) and 3 people we do 24 to 25 mph at 3700 rpm, top speed is 32.5 to 33 @4800 rpm, depending on the water currents.
                            Karen
                            Punxsutawney, Pennsylvania
                            1986 Shamrock H/T with RWC 330 hp PCM, dual hydraulic helm
                            1992 Mako 211CC w/Mercury Optimax 175
                            3 other smaller OB boats and a trusty old canoe...

                            Comment

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