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Can someone identify this motor?

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  • Can someone identify this motor?

    I am not sure of this motor it is in my new purchase of a Campion Toba 270 Offshore. I believe it is a volvo penta 305hp but that’s it and I could be wrong. Also if that is what the motor is or you know what it is could you please provide me with advice for preventative maintenance and ongoing care. Please help. Thank you.

  • #2
    Motor looks like a small block chevy, probably a 350
    http://[ATTACH=CONFIG]temp_277589_1506228680552_413[/ATTACH]

    Boat Pro International
    Restorations, Appraisals & Detailing

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    • #3
      If the displacement is 305 then it will be 225-230 HP. 350 displacement are in the 260 HP range.
      Kenner, Louisiana 1980 Donzi 18'. 2+3 6.2 MPI Alpha 1

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      • #4
        If Campion is still in business??
        Send them the hull #.
        They can tell you what motor was installed.

        I'd GUESS it's a 350 /260 as the 305 wasn't used in the bigger boats, unless]
        they were used as twins

        On the back where the bell housing fits there are some #s post them.
        They will tell what size block is used.

        Try to add as much info as you can.
        Year, model, etc. what drive?
        Fill out the signature too.


        Buy American made Cars and Trucks!!!Towing insurance for a boat,a GREAT thing.
        ​Tools to make my life easier: Battery tester, die grinder, temp.gun, compression tester, DVA meter.

        In Scenic , Beautiful San Sebastian by the sea Florida

        88 Bayliner 21CC 2001 Mercury 225 HP EFI

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        • #5
          It has a 4bbl on it, unlikely it is a 5 litre. Too bad the picture doesn't have decent resolution, may have be able to read what was on the Valve Covers

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          • #6
            Pre 1986. Probably a 350, but all SBC's look alike externally.

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            • #7
              could be a 350, could be a 305. look at the side of the block just forward of the oil filter. or check the block casting number.

              Both the 305 and 350 came from Volvo Penta with a 4-barrel.
              Cheesehead boating the Gulf Coast of FLA 27.51° N, 82.53° W

              1988 Cruisers Rogue 2420 -VP 290 DP now powered by custom 468 - https://forums.iboats.com/forum/owner...988-rogue-2420

              Past Boats
              1970 Wooster Hellion - Merc 9.8
              2002 SeaRay 190BR - 5.0 - A1G2 - "Cheeseheads in Paradise"
              1984 Avanti 170DLI -3.0 stringer- "Ship Happens"

              What’s behind you doesn’t matter.Enzo Ferrari

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              • #8
                Agreed it is an older engine, with the perimeter valve cover bolts and it has a Quadrajet with the hot air auto choke. Look for V/P stickers on it in order to decipher what it is....
                1988 Four Winns 200 Horizon
                4.3 OMC Cobra

                98 Jeep Grand Cherokee 4.0 Selectrac
                07 Jeep Grand Cherokee Limited 5.7 Quadradrive II

                "While air doesn't freeze....rust never sleeps"

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                • #9
                  looking at the carb, its most likely the AQ260, which is a 260hp 350. the AQ271 was a holley carb, and the AQ230 (305) was a holley carb
                  Cheesehead boating the Gulf Coast of FLA 27.51° N, 82.53° W

                  1988 Cruisers Rogue 2420 -VP 290 DP now powered by custom 468 - https://forums.iboats.com/forum/owner...988-rogue-2420

                  Past Boats
                  1970 Wooster Hellion - Merc 9.8
                  2002 SeaRay 190BR - 5.0 - A1G2 - "Cheeseheads in Paradise"
                  1984 Avanti 170DLI -3.0 stringer- "Ship Happens"

                  What’s behind you doesn’t matter.Enzo Ferrari

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                  • #10
                    Looks like an AQ230 to me. 5.0 with 4 barrel. Usually says on the air filter cover if you still have it.

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                    • #11
                      Can't see any power steering.
                      2002 Bryant 188 4.3MPI

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                      • #12
                        What do the valve covers say?

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                        • #13
                          Thanks a lot guys I will check it out more closely headed back home in a couple days and I will take a closer look where you have all suggested and update then. Thanks again

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                          • #14
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                            Pretty sure it is an AQ225 or AQ260.
                            For the 225 it would be a D version if it is before 1986 (2 piece rear seal) or E version for 1986 (one piece seal).
                            Similar for the 260 it would be an A version before 1986 and a B version for 1986.

                            These two are the most common Volvo engines out there. I have worked on many of them and rebuilt some if you have specific questions I can help with.

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