Boats For Sale:
Interesting Craigs List finds |
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rebel skier 
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Joined: October-17-2014 Location: Middle Tenn Status: Offline Points: 776 |
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 Posted: November-24-2021 at 7:20pm |
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Even without seeing the interior (which suggests problems to me) I would say its high. The current owner might value the decals, but I would subtract in value for them.
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Hotty Toddy lets go skiing!
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99airwarrior
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Joined: August-19-2019 Location: Reno Nv. Status: Offline Points: 141 |
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Posted: November-25-2021 at 8:18pm |
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Face book Reno/Tahoe 1974 Correctcraft 1,500.00 https://www.facebook.com/marketplace/item/428400625557221/
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JayG80
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Joined: January-07-2007 Location: United States Status: Offline Points: 170 |
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Posted: November-25-2021 at 9:58pm |
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A 1972
https://houston.craigslist.org/boa/d/crosby-1972-ski-nautique/7405853654.html |
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2007 Ski
2002 Ski |
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63 Skier
Grand Poobah 
Joined: October-06-2006 Location: Concord, NH Status: Offline Points: 4269 |
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Posted: November-26-2021 at 9:45am |
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'63 American Skier - '98 Sport Nautique
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63 Skier
Grand Poobah
Joined: October-06-2006 Location: Concord, NH Status: Offline Points: 4269 |
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Posted: November-26-2021 at 9:47am |
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'63 American Skier - '98 Sport Nautique
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ultrarunner
Platinum Member
Joined: October-02-2005 Location: Ridgefield, Ct. Status: Offline Points: 1852 |
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Posted: November-28-2021 at 9:34am |
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A couple good parts on that one…windshield, platform and maybe the seats.
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MrMcD
Grand Poobah
Joined: January-28-2014 Location: Folsom, CA Status: Offline Points: 3754 |
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Posted: December-02-2021 at 3:24pm |
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I have never seen a COBALT Tournament Ski Boat, Cobalt builds a very high quality boat but I never knew they offered this boat. Did they partner with someone for the hull design?
https://sacramento.craigslist.org/boa/d/granite-bay-cobalt-202cs-comp/7415024544.html
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Jonny Quest
Grand Poobah
Joined: August-20-2013 Location: Utah--via Texas Status: Offline Points: 2989 |
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Posted: December-02-2021 at 5:31pm |
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Interesting. Wood? All composite? I wonder what the ski wake and tracking are like. JQ
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Current
2003 Ski Nautique 206 Limited Previous 2001 Ski Nautique Open Bow 1994 Ski Nautique Open Bow Aqua skiing, ergo sum |
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JayG80
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Joined: January-07-2007 Location: United States Status: Offline Points: 170 |
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Posted: December-02-2021 at 5:46pm |
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2007 Ski
2002 Ski |
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KENO
Grand Poobah
Joined: June-06-2004 Location: United States Status: Offline Points: 11133 |
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Posted: December-02-2021 at 6:17pm |
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And here's what Water Ski Mag had to say about it.
Click the link and go to the last 2 pictures and enlarge them and you can read their review. Like the guy in the Craigslist ad said in the video he has in the ad, it's supposedly a direct descendant of the Hydrodyne Grand Sport 20, with a swoopier looking deck and the same bottom. Lots of internet conjecture, but the Hydrodyne connection has been mentioned since they were first built.  |
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ultrarunner
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Joined: October-02-2005 Location: Ridgefield, Ct. Status: Offline Points: 1852 |
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Posted: December-02-2021 at 6:54pm |
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So, the hull looks identical to the '96 Hydrodyne Grand Sport Elite I just bought. Right down to the dual tracking fins. The top deck and windshield are slightly different, but very similar. The "Hydrolam" system would seem to indicate a carry over from Hydrodyne.
Hull pics: Ultra's new ride:  The Cobalt hull:  |
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stepper459
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Joined: June-17-2007 Location: United States Status: Offline Points: 349 |
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Posted: December-02-2021 at 8:10pm |
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I saw one of these Cobalt inboards for sale on CL around here, and it took me a while to figure out that it wasn't someone slapping a Cobalt badge on an old Mastercraft, or some similar thing. It was way too nice, though, and I figured it had to be real. Sure enough...
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wayoutthere
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Joined: February-28-2020 Location: Florida Status: Offline Points: 489 |
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Posted: December-02-2021 at 8:35pm |
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Same boat in the ad, video from 2 months ago, all idle no juice. Nice looking boat, all fancied up.
Like to scare up one of those ski scorpion engines.
https://youtu.be/tdvS54VlijQ
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MrMcD
Grand Poobah
Joined: January-28-2014 Location: Folsom, CA Status: Offline Points: 3754 |
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Posted: December-02-2021 at 10:23pm |
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I believe the Scorpion engine is just a 350 with the 383 conversion. Changes the stroke from 3.48” to 3.75”. Makes a lot more torque. Very common conversion. Sealed Power sold Mercury Marine the pistons for this conversion.
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KENO
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Joined: June-06-2004 Location: United States Status: Offline Points: 11133 |
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Posted: December-03-2021 at 7:07am |
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4 inch bore and 3.75 inch stroke on the Black Scorpion makes it 377 cubic inches Since it was a new unused block when built, they didn't bore it .030 inch like the aftermarket kits for a used block usually do which worked out to 383 cubic inches with the bore job.
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TRBenj
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Joined: June-29-2005 Location: NWCT Status: Offline Points: 21189 |
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Posted: December-03-2021 at 8:17am |
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Black scorpions were just 350ci, not strokers unless they were the Super Scorpion variety (usually blue instead of black).
The BS was (is?) well regarded but isnt anything too special… though it was one of the first multiport Vortec 350’s so it was a huge step up over the previous 260hp stuff (initially rated at 315hp). Fancy intake but otherwise very similar to the offerings from other marinizers- Indmar Monsoon (malibu) and MCX (mastercraft), PCM Excalibur, etc. Shared many parts with the merc mag mpi. All were rated 315-343hp and had different induction, exhaust and tunes… but were all almost certainly the same vortec roller longblocks coming from GM. Both 377 (stock bore) and 383 (.030 over) strokers were offered by Merc and Indmar, or at least their advertising materials mentioned them. I’ve never measured the bore on any of the factory 383’s to be sure that it was really .030 over… |
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KENO
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Joined: June-06-2004 Location: United States Status: Offline Points: 11133 |
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Posted: December-03-2021 at 8:53am |
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Here's a link to a Mercruiser manual for a Black Scorpion 5.7 and a Black Scorpion 6.2 Not hardly worth trying to figure out all of Mercruiser's terminology and names and different models
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MrMcD
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Joined: January-28-2014 Location: Folsom, CA Status: Offline Points: 3754 |
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Posted: December-03-2021 at 9:00am |
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Most recognize the term 383 refers to a 350 with a 400 crankshaft. Std bore or .060 most still call it a 383 even though the inches vary a little these use the 3.75 stroke.A
The 377 term is usually reserved for a 400 block with a 4.125 or 4.155 bore and a (Correction pointed out by KenO), 350 crankshaft with the 3.50 stroke. Like the 327 engine the 377 is a powerful high winding engine, short strokes like to RPM better than the long stroke engines. I would assume Mercury Marine was using stock new blocks at std or 4.000 bore so they would indeed be a 377 in fact but the speed books and machine shops consider a 350 block with a 3.75 stroke a 383 combo. I remember Malibu sold a Corvette version for a few years that used the stroked 350 and made a fast boat. You see them for sale every once in a while.
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KENO
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Joined: June-06-2004 Location: United States Status: Offline Points: 11133 |
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Posted: December-03-2021 at 9:20am |
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Time for a math check Also time to quit talking about different variations of SBC's from Mercruiser or anybody else, at least in this thread.
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MrMcD
Grand Poobah
Joined: January-28-2014 Location: Folsom, CA Status: Offline Points: 3754 |
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Posted: December-03-2021 at 2:22pm |
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Ken, you are correct but if you go into a machine shop speak the language they understand.
Kind of like having a 351W, it may already be at .030 so approx 356 inches but when you order parts they don't ask if it is a 356W they want you to tell them it is a 351W. If needed you tell them it is bored .030 over.
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wayoutthere
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Joined: February-28-2020 Location: Florida Status: Offline Points: 489 |
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Posted: December-03-2021 at 2:49pm |
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https://www.mercurymarine.com/en/us/documents/installation-drawings/ had to edit this in, the original link didn't work, scroll down, the ski engines are listed. Was not aware the ss scorpion was a blue motor. Only reason i'd like a complete ski scorpion, black scorpion, mpi ski etc is the availability of stainless exhaust and closed cooling I'm not opposed to the 351w, i drive an f150 because i prefer it over the chevy for several reasons, don't even mention dodge unless it's an al bundy/ married w/ children reference, but chevy parts are all over. i.e. yeah i'll have a number 3 double whopper with cheese trade the fries for o rings a coke and the stainless cmi e tops for a small block chevy. Do want those e tops polished ? No thank you the brushed finish will be fine. When i got the nautique i told myself ; "the ski boat guys will swapping scorpions for the ls and the lansdcape would be littered with sbc drop ins".
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KENO
Grand Poobah
Joined: June-06-2004 Location: United States Status: Offline Points: 11133 |
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Posted: December-03-2021 at 6:30pm |
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That's because there is more than one Scorpion that's 6.2 liters or 377 cubic inches. Mercruiser sold the run of the mill production engine for pleasure boats. It was the Black Scorpion 6.2 Mercury Racing sold a high performance engine with some aftermarket stuff, that was the Scorpion 377 and cost lots of money and was called the Blue engine or Blue Scorpion by some.
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KENO
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Joined: June-06-2004 Location: United States Status: Offline Points: 11133 |
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Posted: December-03-2021 at 6:38pm |
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You're speaking some funny language The language they'd understand is that your 377 "term" up above is really about a 350 plus or minus a little depending on the bore. Do the math |
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ultrarunner
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Joined: October-02-2005 Location: Ridgefield, Ct. Status: Offline Points: 1852 |
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Posted: December-03-2021 at 7:15pm |
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Just get a python and be done with this conversation! :-) there is no substitution for cubic inches, right?
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AlfaDon
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Joined: September-18-2011 Location: San Leandro, Ca Status: Offline Points: 407 |
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Posted: December-03-2021 at 7:30pm |
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Exactly!!
There’s no replacement for displacement!!
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MrMcD
Grand Poobah
Joined: January-28-2014 Location: Folsom, CA Status: Offline Points: 3754 |
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Posted: December-04-2021 at 2:52am |
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I have to offer a correction, I had a brain fart I guess. The 377 was actually the 4.125 bore with a "350" 3.48" crankshaft not the 3.25" stroke 327 crank. My mistake, we made special spacer bearings back in the 1980's that allowed use of the 350 crank in the larger 400 block and a lot of race teams used that combo. Demand dropped off in the late 90's so this bearing was obsoleted. Clevite kept making it a little longer. I think today King Bearing is the only source for the 377 bearings.
The combo that ran the 4.125 bore 400 block with the 327 3.25 crank only made 350 cubic inches but the cool thing about this combo was the larger bore helped the heads flow better and this combo made more horsepower by a fair amount than the 350 4" bore x 3.48" stroke engine ever did. Many said it was the 350 GM should have produced. This combo could spin 7000 RPM quickly and pretty reliably with the very short stroke. I will go back up and edit the note so the crank size is correct regarding the 377. Both the modified 350 and the 377 were obsoleted when aftermarket heads came out and allowed the big bore 4.125" 400 blocks to start making huge power in stock configurations, longer rods were installed, 5.7 or 6" which takes internal stress out of the block webb and makes the 400 able to run high RPM like the 327 used to. The LS blocks obsoleted all the old school blocks by doing all of the above tricks better and offering more reliability even at higher power levels. Technology keeps moving us along.
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KENO
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Joined: June-06-2004 Location: United States Status: Offline Points: 11133 |
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Posted: December-04-2021 at 6:33am |
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So getting back to our regularly scheduled programming, the Cobalt in the Craigslist ad has a regular production Mercruiser Black Scorpion 6.2
Time to move on to the next CL ad
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63 Skier
Grand Poobah
Joined: October-06-2006 Location: Concord, NH Status: Offline Points: 4269 |
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Posted: December-04-2021 at 11:02am |
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Mark, thanks for the details, I enjoyed the writeup. No question about the LS being superior in a modern sort of way, but that doesn't make the old iron any less interesting.
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'63 American Skier - '98 Sport Nautique
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ultrarunner
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Joined: October-02-2005 Location: Ridgefield, Ct. Status: Offline Points: 1852 |
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Posted: December-06-2021 at 5:42pm |
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Hey gang, this just popped up on the Classic Correct Crafts FB site. The boat is FREE, so disregard the pricing in the CL ad. |
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rebel skier
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Joined: October-17-2014 Location: Middle Tenn Status: Offline Points: 776 |
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Posted: December-06-2021 at 5:57pm |
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I saw one of those at a gas station in Middle Tennessee but by the time I got turned about to try to see it closer it was gone. i think it has 2 engines though.
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Hotty Toddy lets go skiing!
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99airwarrior wrote: