Re: [OMC-Boats] 1964 Dual OMC Deluxe Spotted

The problem with the little Chevy inline 4's is their power-to-weight ratio. That's what was so ideal about having the dual 480 two strokes. The were ultra-light, feather-weights!

Another possibility would be to adapt the later OMC 2-stroke V6 outboard engines to an intermediate housing. Then you would have some serious power with very little weight.

OMC apparently once explored this possibility, but found they could buy GM automotive 4, 6, and 8's cheaper than they could built V4 and V6 2-stroke power heads, so they didn't take the idea any further with respect to sterndrives.

Lee

-----Original Message-----
From: Ethan Brodsky [mailto:brodskye@...]
Sent: Wednesday, September 23, 2009 9:53 AM
To: Lee Shuster
Subject: Re: [OMC-Boats] 1964 Dual OMC Deluxe Spotted

Wouldn't it be beautiful with a pair of inline sixes? It'd be no less practical than your typical modern Baja or Donzi (which are absolutely a joke, but who cares?). The hull probably isn't designed for that kind of speed, but trim tabs and maybe a bunch of ballast foward would help. I love the sound of dual engines and the handling would be amazing. Those dual throttles already look sexy - I can't imagine how well the thing would turn when you pinned the outside engine in a corner and cut the inner to idle. You could probably flip it if you got it to dig in in a corner...

Ethan

On Wed, 23 Sep 2009, Lee Shuster wrote:

> Why not go with a pair of inline Chevy 250 - 6's ?  That would push
> 320 - 340 hp. Don't you just love imagining the project possibilities
> when it comes to re-powering with OMC's.  Of course the length would
> intrude on usable interior space, but who cares? The CG would move a little forward, which would be good.
>  
> I haven't run the numbers, but I think you'd have a 50+ mph, yet very reliable outfit.
> And the Chevy 6's were absolutely bulletproof (MerCruiser sold tons of
> them). If you wanted to get carried away you could even try
> retro-fitting the blocks with Pontiac's innovative OHC which came with a QuadraJet 4MV, then you'd be pushing another 100 hp!
> Exhaust manifolds might be a problem, however.
>  
> Of course, it would be cheaper just to build out a 383 or 400 small
> block chevy, but then you would have to push all that thru a single
> electric stringer, which would greatly reduce reliability.
>  
> lee
>  
>  
>
> ______________________________________________________________________
> __________________________
> From: omc-boats-bounces@...
> [mailto:omc-boats-bounces@...]
> On Behalf Of Scott Veazie
> Sent: Wednesday, September 23, 2009 8:48 AM
> To: omc-boats@...
> Subject: Re: [OMC-Boats] 1964 Dual OMC Deluxe Spotted
>
> Imagine retrofitting that with two 120-140hp inline Chevy
> fours....should be able to sqeeze those in....a dual deluxe with around 240-280hp!
>
>  
> > From: jdood@...
> > To: omc-boats@...
> > Date: Tue, 22 Sep 2009 21:03:00 -0700
> > Subject: Re: [OMC-Boats] 1964 Dual OMC Deluxe Spotted
> >
> > nice, but no windsheild. too bad. if you find out he's parting it
> > out, i'd love to buy those nav light lenses.
> >
> > Jeff D
> >
> >
> >
> > On Sep 22, 2009, at 1:36 PM, Jeff LaCoste wrote:
> >
> > >
> > > Hope these pics go thru, I ran across one of those rare OMC Dual
> > > Deluxes outside of Port Townsend WA, so I had to pull over and
> > > take some pics. I wonder what the plan is here with this boat.
> > >
> > > Jeff
> > >
> > > <IMG_0100.jpg>
> > > <IMG_0099.jpg>
> > > <IMG_0307.jpg>
> > > <IMG_0311.jpg>
> > > <IMG_0312.jpg>
> > >
> > >
> > >
> > >
> > > Jeff LaCoste //
> > > 206-781-3477 //
> > > Heavy@...
> > >
> > >
> > > _______________________________________________
> > > OMC-Boats mailing list
> > > OMC-Boats@...
> > > http://lists.ultimate.com/mailman/listinfo/omc-boats
> >
> > _______________________________________________
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--
<a href="http://www.engr.wisc.edu/~brodskye/"> Ethan Brodsky </a>