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  1. Scott Danforth

    What the heck is this engine? 1000 SC

    I would just pull the solid lifter cam, back off on seat pressure, drop the boost, redo the carbs from twin 1050s to twin 700s and live with 800 HP :D
  2. Scott Danforth

    DPSM gimbal bearing

    3888555
  3. Scott Danforth

    How to winterize aq151a - changed oil recently.

    Oil gets changed Raw water side gets drained Drive gets pulled U-joints get checked Drive lube gets serviced Raw water impeller gets pulled It even freezes in Texas and Florida. So definitely do not take a chance in the Pacific Northwest
  4. Scott Danforth

    1962 Chris Craft Holiday 20’ bucket list resto

    Door skins from the box stores work. 1/8 cheap plywood. For critical forms, a sheet of clear plastic drop cloth works
  5. Scott Danforth

    89 Horizon 180 with stock 4.3 upgrade questions

    We are here to help everyone, consider this a friendly reminder to check the rules. https://forums.iboats.com/threads/attention-forum-rules-attention.388514/
  6. Scott Danforth

    What the heck is this engine? 1000 SC

    BTW, Merc racing cost to refresh the valvetrain on the 800SC, 1000SC, 1075SC and 1100SC is $26k per motor if it is running ( based on 2006 literature)
  7. Scott Danforth

    89 Horizon 180 with stock 4.3 upgrade questions

    Good luck
  8. Scott Danforth

    What the heck is this engine? 1000 SC

    Look up the serial number. It will tell you exactly what it is Merc racing quit using 454 motors back in 2000. They used 502 motors, 540's, 572's and then their custom motors for the 1300, 1350, 1600 and 1650 Merc racing paints most of their motors blue The drive will also tell. Anything...
  9. Scott Danforth

    Volvo Penta 4.3 GL Water In Cylinders After Running

    Block off the hoses to the manifolds and the one from the PS cooler. Pressurize to 15 psi, shut off pressure supply. Should hold pressure forever
  10. Scott Danforth

    What the heck is this engine? 1000 SC

    Keep in mind, you can buy a brand new 6.2 complete for what a valvetrain rebuild will cost you on a Mercury Racing motor....
  11. Scott Danforth

    What the heck is this engine? 1000 SC

    That boat is most likely one of the custom built Forest River brands. A few of them left the factory with racing motors
  12. Scott Danforth

    What the heck is this engine? 1000 SC

    A 1000 SC is a Mercury Racing 572 cubic inch Tall Deck motor with a blower and twin dominators If it is truly a 1000SC, that is 1000 hp. It is NOT a pleasure boat motor, it is not a motor that will ever be easy on your wallet. It is a racing motor. And as such, the valvetrain will need...
  13. Scott Danforth

    Big differences, same power?

    I don't know exactly when they would have been compliant with ICOMIA 28-83. However there would have been manufacturing changes as well when Merc took over
  14. Scott Danforth

    I did another thing, ha ha ha I can’t wait 😁

    Ammo is expensive for the .44
  15. Scott Danforth

    89 Horizon 180 with stock 4.3 upgrade questions

    I would do a vortec 4.3 with a 4 barrel. Almost 50 more hp than your 1989 2-barrel
  16. Scott Danforth

    Volvo Penta 4.3 GL Water In Cylinders After Running

    Trust no one but your own wrench turning
  17. Scott Danforth

    DPSM gimbal bearing

    There is only one gimbal bearing and it fits both Volvo and Mercruiser
  18. Scott Danforth

    can anyone id this model?

    What does the paperwork say it is
  19. Scott Danforth

    Big differences, same power?

    My guess.....88/89 were old rating system of flywheel rating. 90+ was new rating system for prop rating
  20. Scott Danforth

    Just thought I'd share a nice photo.

    Ft DeSoto
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