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Old 01-02-2018, 03:50 PM   #11
themudshark
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Model Owned: 89 spectra 201 with 4oo hp johnson v-8

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Boom!

'86 251.

Fell in love w/the color scheme, never seen it before.

Wanted an alum trailer and its on one thats 1 yr old.

Has a .030" over 454 w/a stroker crank and is at 493 cu ins I believe.
All good parts (rods etc) but dropped a valve.
Has an '06 Bravo 1 thats perfect.
Seller guesed 625 HP's. 82 mph GPS.

Once I get it home, that all comes out and goes up for sale.

Should be a fun project.
have you sold any motor parts yet,possibly intersested in motor for my 25 convincor project.
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Old 01-02-2018, 03:53 PM   #12
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if you still have motor i
Im possibly interested
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Old 01-03-2018, 06:21 PM   #13
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Model Owned: 253 convincor(sold) 251 convincor(sold) 21 Eliminator Daytona 25 Sportcraft CC 50 Gibson

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not sure how bad that one was hurt, told me blew it up twice, second time he was giving up...engine builder was supposed to make it right, but of course never did...I may sell my 496 454+4.25+.060 merlin grumpy jenkins heads, stripe dominator intake, Comp solid marine cam, complete...just seeing what happens with my eliminator
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Old 01-04-2018, 05:06 PM   #14
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Model Owned: 1988 Starliner (sold), 1982 Convincor (twin 3.0 Mercs)

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Nice looking 251!
Did the i/o only have a 57gal tank?

My '82 twin o/b 251 Convincor has a 90gal tank.
I replaced it in 2016 with a new one when replacing floor and cabin. Orig tank was 98gal, but sending in exact dimensions to the tank manufacturer (near Jersey Shore), resulted in a 90gal tank. I presume adding baffles and thicker alum are reason for losing capacity.

Last year Demag replaced my transom (pour in) and stringers up into cabin (discovered they were worse than previously thought in 2016), and floor again, and we're finishing off the cabin fitments this Winter.
That, and an engine rebuild, and I should be ready to go by Spring.

Good luck with the build. Reach out to Demag, Droptop, Ramifications or I if you want to get input on all the work done to our twin o/b Convincors in last few years.
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Old 01-11-2018, 01:44 PM   #15
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Thx for all the help guys and sorry for the delayed reply.
Messages were going to spam.

Sold the exhaust today,and a friend has spoken for entire outdive system.

Motor is still assembled and unspoken for.
mudshark, call me if interested. 937-571-1239

I will open up the motor for an autopsy as soon as my new shop is built or weather breakes. Both looking like spring ;(

ezstriper, thats what he told me. Said it dropped a valve this time.
He was sick of writing the checks for little on water time.
The Stainless exhaust would have passed as new!

knarloid, 67 gls. You can see the ID tag under the rear bench seat.

Im going to start a new thread on the conversion/restoration.
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