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Viking 1973 40' repower

Old 11-12-2019, 08:32 PM
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can i ask how much this re power will cost all said and done approx, thanks
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Old 11-13-2019, 04:26 AM
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OP - good luck and keep us posted with pics! Are you still hoping to hit a low 20s cruise w the 370s? Great engine, we’ve had a pair, but you’re asking a lot out of them to push that boat consistently in that range
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Old 11-13-2019, 04:36 AM
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The repower will ballpark around $100,000

According to Boat Diesel and John Lane, we should expect cruise in the low 20s. I really hope that is the case...
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Old 11-13-2019, 07:00 AM
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How long have you had this boat?
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Old 11-13-2019, 07:04 AM
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My dad just bought it about 2 months ago.
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Old 11-13-2019, 07:37 AM
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This will be a lot of money for a boat not worth a lot of money.... I like Vikings for sure, but 70's models not so much...
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Old 11-13-2019, 09:56 AM
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Got any pictures of this boat? I know a 370 and zf220 are $40k each, how much other work are they planning on having to do?
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Old 11-13-2019, 09:57 AM
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I imagine by the time you add in shafts, props, struts, mounts, plus labor, you hit the 100k easy
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Old 11-13-2019, 10:08 AM
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Originally Posted by OIReelKeeper View Post
I imagine by the time you add in shafts, props, struts, mounts, plus labor, you hit the 100k easy
pretty much nailed it, plus any exhaust if necessary.
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Old 11-13-2019, 12:23 PM
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Originally Posted by Wallers View Post
pretty much nailed it, plus any exhaust if necessary.
I am going send you a PM. I might be able to help you with this boat.
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Old 11-14-2019, 06:21 AM
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Originally Posted by OIReelKeeper View Post
OP - good luck and keep us posted with pics! Are you still hoping to hit a low 20s cruise w the 370s? Great engine, we’ve had a pair, but you’re asking a lot out of them to push that boat consistently in that range
This.

The 6BTA 370s have 355hp, not 370. I have them in my boat and I am at least 6000 lbs lighter with less deadrise and they are adequate. My guess is you can hit 20s if over propped and run at 2600 rpm, I run mine at 2400 to ensure longevity. This all being said I am not a mechanic, just a little experience with the engine. If you have any questions feel free to send me a private message. Good luck and thanks for posting for us to follow!

Jay
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Old 11-14-2019, 06:30 AM
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Our 30 pursuit offshore did about a 24-25 knot cruise and that boat was ~12,000 lbs. I think the 41 viking is close to 30,000 isn't it? I'm sure your guys know 10x what we do, but again, it would suck to spend 100k and end up with a ~17-18 knot cruise when youre looking for 22-23
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Old 11-14-2019, 07:22 AM
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Have to agree....would be shocked if a pair of 370's got you a cruise in the 20's in that boat. Not trying to be negative, just would hate to see someone spend that type of money to end up disappointed. Maybe have the guy doing the repower put something in writing as to what the performance will be and tie some of the payment to that. He might be a bit more 'realistic' if you phrase it that way.
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Old 11-14-2019, 07:28 AM
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OP, I'll add that I'm sure budget comes into play here. If you can get a great deal on the 370's and save 20k+ but will be "ok"at potentially 18 knots vs 22, all is good!
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Old 11-14-2019, 11:35 AM
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It's not my money but I'd think long and hard before I would put that much money into a 1973 Viking 40, lot of funds going into a Black Hole.
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Old 11-14-2019, 05:20 PM
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Figure on $4500.00 a knot knot a good idea with a 73 viking.
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Old 11-14-2019, 06:48 PM
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You should get 450s they're basically the same price transmissions are a bit more.
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Old 11-14-2019, 06:54 PM
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I could be wrong but I think my dad mentioned that he found the 370s are the biggest he could fit in the engine room.
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Old 11-14-2019, 10:14 PM
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Do you have an estimate of the weight of the boat?
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Old 11-15-2019, 04:57 AM
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When the boat was hauled they said 30,300 lbs
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