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Old 07-31-2009, 07:57 AM   #1
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1987 34.5' Airstream 345
Waxahachie , Texas
Join Date: Jan 2009
Posts: 167
Diesel Conversion of 1987 345, Anybody?

I have a 1987 345 with TH 475 and 454 Power plant. I have read some threads from some folks in the past who have converted to diesel and thought I would try and get some information. Are there any "kits" available? What are the best and least complicated engine / trans combinations to go with? Is it worth it? I recently bought a used 1987 5 ton F600 dump truck for several specific projects around the place, and once I'm finished I thought I might look towards that as my donor. The cab and body is pretty ragged anyway, and I got in it CHEAP! It has an inline 6 Ford turbo diesel and allison automatic. Thoughts?
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Old 07-31-2009, 03:37 PM   #2
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Del Mar , California
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We looked into converting to a Duramax/Allison powertrain. Appeared to be a solid case of diminishing returns. Better off to simply rebuild / replace the 454.
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Old 08-01-2009, 05:39 AM   #3
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2005 25' International CCD
Leesburg , Georgia
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Old 08-01-2009, 06:46 AM   #4
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1965 26' Overlander
1962 24' Tradewind
Vincennes , Indiana
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If that is the same Ford turbo 6 that was in school buses it has a severe lack of power.

TV1: Black Sheep, 2001 Dodge 3500, 800,xxx miles, a few non-stock parts here and there...
TV2: Brownie, 1989 Dodge W250, only 256,000 miles!
TV3: 2004.5 Dodge 3500, 415,000 miles, 6 spd
TV4: 2005 Dodge 3500, 478,000 miles, 4spd auto
"Too much of what I once knew I now know not" Me
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Old 08-01-2009, 07:26 AM   #5
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1991 34' Excella
Princeton , New Jersey
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If you go with a GM 6.5 diesel with the mechanical injection you won't have to deal with the computer and the wiring it requires. Also should be a drop in with the mounts of the 454.

As for power my 6.5 with an after market intercooler and the timeing kicked back a bit had 192 hp at the rear wheels.
2004 Excursion 4x4
1991 34 ft. Excella +220,000 miles, new laminated flooring, new upholstery, new 3200 lbs axles

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