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  1. 3

    Volvo Penta SX-M upper compatable with DP- SM lower?

    Anyone know if the SX-M upper will work on a DP-SM ? Both were behind 5.7l engines. The SX-M upper i found is advertised as a 1.60 ratio. My DP-SM lower is a 1.95 or 7.
  2. 3

    Volvo Penta duo prop what props do i need?

    How do i choose props for this out drive? I bought it on craigslist with out props. It came off of a 22' stingray with a 350. I'm putting it on a 20' Glastron gs205. I am building a 383 stroker and hp will be 400 or a little above.I'm pretty sure my engine will be in the 5,500 rpm range topped...
  3. 3

    Gelcoat question

    My 98 glastron gs205 is maroon colored and white. I would really like to re gelcoat the maroon with teal. Do i have to sand all the maroon off or can it be sealed and shot over with teal gelcoat?
  4. 3

    Converting SX Cobra to duo prop questions

    Re: Converting SX Cobra to duo prop questions Understood. I do have a picture of it and his upper looks just like mine.
  5. 3

    Converting SX Cobra to duo prop questions

    I have a 1998 SX Cobra and was told that i could use any DP-SM lower on my upper to make my single prop a duo prop. Does this sound right?
  6. 3

    Stock vortec vs EQ 180cc performance head for 383 build?

    Pros and cons? Not much porting if any to do on the raised runner eq head. Small ports should be great for volicity and fast burn chamber a + ?
  7. 3

    Which vortec heads for 383 build

    I see different vortec style heads new with different sized valves and runners. Some are advertised to out flow the stock vortec heads. Some have the 170 and 185cc runners with 2.02 and 1.60 valves. Would these heads be OK for a 383 build? I plan on running stock exhaust system and my outdrive...
  8. 3

    Engine question on my 98 Glastron gs205

    I'm not sure if this is the right forum to ask but here i go. I bought my 98 gs205 with out an engine and am currently looking for one. Would a 400 small block work in place of the 305 vortec that was in the boat or is the flywheel differance going to kill that idea? My drive unit is an sx cobra.
  9. 3

    Clear gel coat for scratches?

    I've been sanding the oxidized gel coat on my boat and have been able to sand most of the scratches out followed up with buffing. I have about 4 areas where there are scratches too deep to sand. They're not down to the fiberglass but deep enough that it will show up as waves in the gel coat if i...
  10. 3

    1998 Glastron GS205 SF

    I found this boat in Texas well off the beaten path and drove away with it and the trailer for $580. The engine is gone but most everything else was still there, flywheel exhaust manifolds raw water pump bell housing starter and more. The interior needs reupholstered and a new deck. The transom...
  11. 3

    Engine replacement for1998 Glastron GS205

    I posted this question in several other forums with out any hits yet. I bought this boat with out an engine. It had a volvo penta 5.0. I want to put a 5.7 back in and am curious what years of engines i am restricted to and why. The out drive is a SX Cobra.
  12. 3

    What year engine?

    For a 1998 Glastron GS205? I bought the boat last week with a missing 5.0 I plan on building a 5.7 to put back in it and going with a new marine cam. I know the 98 5.7s had the vortec heads and i like that but if i end up buying the heads separate from the bottom end what years for a bottom end...
  13. 3

    1998 Glastron GS205 SF question

    I bought this boat yesterday as a project boat. Does anyone know how much clearance there is between the carburator and the engine cover? It came with out an engine so other wise i wouldn't be asking.
  14. 3

    Sand blasting

    Would sand blasting be to aggressive for removing gel coat from a fiber glass boat?
  15. 3

    Stringer spacing on 1998 Glastron GS 185

    I just bought a 98 gs 185 with a 3.0 engine. I know these same boats came with different size's of engines. Are the stringers on each side of the engine where the engine mounts bolt up to them spaced the same as my boat that came with the 3.0? I'd like to put a v6 in it but not if i have to run...
  16. 3

    1998 Glastron 185 sx

    I just bought this boat with a 3.0 in it. Does anyone know if the stringers in it on each side of the engine are spaced the same distance as a 185 with a 4.3 for motor mount purpose's?
  17. 3

    Lots of questions

    I,m in the process of replacing my transome and stringers along with a bigger engine in a 78 tri hull. Are the mercruiser out drives limited to a certain RPM? Mine is an mc1. The reason i ask is because i am ready to start ordering parts for the engine, a 4.3 vortec. I need to choose a camshaft...
  18. 3

    1979 Marquis Sting Ray

    I have started cutting the rot out of this 17' tri-hull and would like to run stringers for a 4.3 instead of the mercruiser 140 i pulled out. I took the transom apart today and am thinking i should have sat a 4.3 in first to see where the new stringers will need to be. Have i messed up or is...
  19. 3

    Stringer question

    I have seen plastic 1x6 at the lumber store. Could a guy screw them together to make 2x6 or 2x4 for stringers and would fiber glass stick to them?
  20. 3

    3.0 to 4.3 Questions

    Will a 4.3 bolt up in place of my 3.0 mercruiser? What is the H.P. of the 4.3 and will it have plenty of power to pull 2 adults skier's. My boat is a 17 foot tri hull. I took the cap off today to rebuild the transom.
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