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  1. acadian2022

    1997 Doral 300 SC twin 5.7 mercruiser

    Good morning everyone. I'm posting this for a friend having issues with one of his engine. So last year my friend went to fuel his boat and turnout the o'ring gasket to his gas cap feel out without him noticing and for several days it rain and I mean it rain a lot next thing you know apparently...
  2. acadian2022

    1987 GM 305 x 2 rebuild questions.

    the two 305 100% was running on timing chain its just when I went and checked the shaft yesterday notice on crankshaft had 2 gears assuming that would have been for a double timing chain set up. I have one 350 ready for the machine shop just to clean the blocks and heads and possibly a light...
  3. acadian2022

    1987 GM 305 x 2 rebuild questions.

    To clarify one crankshaft had 2 gears I could post pictures tomorrow of the 305 crankshaft if that helps?
  4. acadian2022

    1987 GM 305 x 2 rebuild questions.

    Hi Scott. both 305 had timing chain. one 305 had a double timing chain gear was 2 different 305 in that boat from the beginning that could explain that right? one from the casting number was saying truck 305 and the other casting said passenger 305 like Monte Carlo thank you Scott
  5. acadian2022

    1987 GM 305 x 2 rebuild questions.

    Good day all. they are both 1995 vortex 350 mechanical fuel pump. now Ive spent lots of time online to read up on twin engine setup and I have yet figured out rotation of twin engine boat out from the boat manufacture for my model if my boat engine rotation was both clockwise or counter...
  6. acadian2022

    1987 GM 305 x 2 rebuild questions.

    Good day all. Moving forward with 350 2 bolt main rear single seal. I've got one a runner however I want them as new as they get so full tear down and at the machine shop for cleaning inspection and then looking for another one. The one I got was free from my cousin was inside great shape.
  7. acadian2022

    1987 GM 305 x 2 rebuild questions.

    Ok thank you. I may have found 4 options two SBC 350 or 2 SBC 305 still in the trucks and runners I'm waiting for serial numbers to research them a big thank you again for all your assistance.
  8. acadian2022

    1987 GM 305 x 2 rebuild questions.

    Good day, I found a few places that carry most parts I'm fortunate some of my family member here have machine shop and are machinist if its made of metals they pretty much can reproduce anything. shaft, gears etc. thank you for the heads up.
  9. acadian2022

    1987 GM 305 x 2 rebuild questions.

    Yes but would example my existing bellhousing and flywheel ring gear fit a Vortex engine?
  10. acadian2022

    1987 GM 305 x 2 rebuild questions.

    are you also saying that my flywheel ring gear will also be a perfect match bolt pattern etc, what about existing motor mount assuming modification in the engine compartment would be required?
  11. acadian2022

    1987 GM 305 x 2 rebuild questions.

    Im seriously considering heat exchanger close loop vs what was in prior open loop salt water. the set up was two 305 - 4 barrel I was reading best to stick with cast just in case I don't add a heat exchanger
  12. acadian2022

    1987 GM 305 x 2 rebuild questions.

    Oh Scott, could you provide me with example vortec block and a intake that would work well for my project, as mentioned for me HP is by far my goal as long as I keep it within the HP of the boat design to a degree that is. from my reading some Bayliner 2850 came with 305 / 350 and apparently...
  13. acadian2022

    1987 GM 305 x 2 rebuild questions.

    Ok thank you Scott, I will show my friend your suggestion since he is way more knowledgeable then I, I figured the more I keep things the same would ensure the rest of the parts will fit well, should one be concern about the stern drives if you increase the HP of an engine I would imagine the...
  14. acadian2022

    1987 GM 305 x 2 rebuild questions.

    Good morning all. the drive are OMC and look to be in good condition on the exterior zero scuff but will get to that once engine are ready. a Kudos to Bondo, I went to the machine shop with the 2 blocks and 4 heads and I the very knowledgeable team said we could take your money and do what you...
  15. acadian2022

    1987 GM 305 x 2 rebuild questions.

    Thank you for your reply its looking like 20 over would work. As for GM dealers we only have Ford in the Maritime hahaha just kidding you have point will give them a call who knows. Let's all keep in mind I'm retired have a huge shop 2 floors lots of tools and lots of courage :) and plenty of...
  16. acadian2022

    1987 GM 305 x 2 rebuild questions.

    Good day. Your not wrong in what you say to a certain extent however I have a good contact at a machine shop not as expensive as one may think. A new engine shipped to me in New Brunswick Canada is not as available as one may think. As for more HP I'm not interested whatsoever I'm a old guy now...
  17. acadian2022

    1987 GM 305 x 2 rebuild questions.

    Good day. Your not wrong in what you say to a certain extent however I have a good contact at a machine shop not as expensive as one may think. A new engine shipped to me in New Brunswick Canada is not as available as one may think. As for more HP I'm not interested whatsoever I'm a old guy now...
  18. acadian2022

    1987 GM 305 x 2 rebuild questions.

  19. acadian2022

    1987 GM 305 x 2 rebuild questions.

    Good day all, several questions this morning ok lots :) I purchased a 1987 Bayliner 2850 for the trailer for my 25 foot aluminum boat and got the boat for free not to mention the aluminum 28 foot trailer for a GREAT price. Looking at the boat its in absolutely great shape accept the engines! So...
  20. acadian2022

    2850 Bayliner B command Bridge question

    Ok will check that. The boat is in great shape will be getting it home next week and start looking at its potential etc. Thank you
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