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Joined: Sat Aug 07, 2010 5:43 pm
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PostPosted: Mon Aug 09, 2010 12:14 pm   Post subject: Ford V8 or V10?

I'm looking to purchase a new Ford E350 and must decide between the v8 and v10 options.

It will be 4wd, and probably a RB. Towing would only be for light trailers, on rare occasions. It will be mid weight with options.

My 1st thought was that a v10 might last longer, but not sure about this. Quigley told me they can't retro a v10 because of gas tank changes.

Mileage, reliability, durability and cost/ease of maintenance, not in that order, are my considerations.

Would appreciate any advice or insights.
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PostPosted: Mon Aug 09, 2010 12:53 pm   Post subject: Re: Ford V8 or V10?

i have a 2001 v10 eb with quigly and tranflow tanks

very greatfull for the v10
dont tow
dont wanna tow

(but i really want one of these cool trailers :)
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PostPosted: Mon Aug 09, 2010 1:18 pm   Post subject: Re: Ford V8 or V10?

I think your build-out should factor significantly into your decision. Interior cabinets, aftermarket bumpers, winch, appliances, large fuel tank...all add fairly considerable weight. Also, where you live and where you will drive your van also factor significantly. A lot of mountains and valleys and you'll appreciate the extra power.


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PostPosted: Mon Aug 09, 2010 1:44 pm   Post subject: Re: Ford V8 or V10?

Most V10 owners will tell you that you need the power of the bigger engine. Most diesel owners feel the same.

Most V8 owners are happy with the smaller engine.

If I were to do it again, I'd probably opt for the V8 over the V10.

My dad pulls a 6K# trailer with his V8, no issues.

Unless you feel the need to get up to speed quickly, or to drive 75+ the V8 has enough power. And if you pull a heavy trailer, you may have to slow down going up mountain grades - so what? I've pulled a trailer across country with a VW Van with 75 horsepower - and it was an enjoyable trip.

Drive a V8 van and a V10 van and then decide.

Mike
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PostPosted: Mon Aug 09, 2010 6:18 pm   Post subject: Re: Ford V8 or V10?

If it was me, I'd go with the 5.4, but then I have no need to push a vehicle on 35" tires down the road at 75MPH either. If you think you might want to add huge tires and drive like what I just described, go with the 6.8.

If you like power, there is no "replacement for displacement." Proper rear end gearing can help a small motor pull big loads but you will sacrifice top end and your fuel economy will suffer.

When you only have 4 or 5 gears in your transmission, you must choose wisely. Or....you could talk to Gear Vendors about their over/ under splitter and double the available gears. I'm surprised I haven't read anything about them on this forum yet. But at $4 or $5k, I would take the $600 option for the V 10. If you like power.

I wanted a 5.4 in the van I bought, it wasn't hard to find, but I really wanted one because they have such a great track record. I'll take $400 spark plug changes once every few years and 15 MPG over a P.O.S. 6L diesel any day. There a many 5.4's in commercial service that have gone into the 4 or 500,000 mile range without trouble and at least one that has over 1,200,000 miles on it. Sounds like a proven, reliable product to me.
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PostPosted: Wed Aug 11, 2010 8:55 am   Post subject: Re: Ford V8 or V10?

Our van weighs in at over 10,000 lbs due to the 4x4 conversion, winch, steel (rather than aluminum) bumpers front and back, twin 28 gallon gas tanks, 6 gallon water heater, etc. It is an EB and stuffed with stuff. When going into the back country, I add 20 gallons of water on the rear bumper.

I'm sure that a V-8 would get us out and back with all of that weight but I really appreciate our V-10. It is much like the 283 V-8 in my 1959 Chevy...at 60 mph on the freeway, that engine seemed to be running only slightly faster than at idle. Likewise, the V-10 is not even straining at 60 mph. It just seems to make sense that an engine will last a lot longer if it isn't continually over-extended.
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PostPosted: Wed Aug 11, 2010 10:55 am   Post subject: Re: Ford V8 or V10?

The V10 is a great motor. It is also paired to the much more robust 5R110 transmission compared to the 4R75 with the V8.

QuadVan will and has done new V10-powerd vans, and they can also do a TransferFlow 46 gallon tank and also an aux rear tank, neither of which Quigley can do.

Fuel economy of the V10 isn't that much worse than the V8. 1-2 MPG solo. But the V10 usually gets better fuel economy when towing.

If you ever sell your van, you will have an easier time if it has the V10.


PS - I have 290,000 miles on my V10, and I'm running it hard (up to 25,000 pounds combined, and it chipped), and it has had zero problems. Repairs so far have been a starter relay, both forward O2 sensors, and recently the radiator (upper tank burst coming over Siskiyou pass, but I still drove to Medford without overheating).
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PostPosted: Wed Aug 11, 2010 10:43 pm   Post subject: Re: Ford V8 or V10?

We've towed with both the 4.6L and 5.4L V8s.

We sold the 4.6L after 6 months.

Now we have the 5.4L, and are very happy with it.

Keep in mind that we're towing a double jetski trailer that weighs ~ 3000 lbs with fuel and gear. It's quite sufficient for that.

If I were towing a lot more weight, a V10 would be the thing; the mileage is pretty similar to the 5.4L.

Our issue is that finding a V10 with the barn door configuration on the used market? D*mn near mythical, if not impossible. So we would most likely have had to buy new, which would have doubled our van costs.

Sandi
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Location: BC Canada
PostPosted: Thu Aug 12, 2010 1:19 pm   Post subject: Re: Ford V8 or V10?

For an SMB 4x4 I would think that a V10 is the natural choice. Running at or above GVWR 100% of the time on high rolling resistance tires ( all terrains or worse) will do nothing positive to your fuel economy. So I would not be concerned about the extra fuel consumption at this point. Plus you are buying new so $$$ are probably not that big a concern. FWIW, I just bought a 2008 E350 12 passenger for 35% of MSRP on a 2010. 30K miles, still under warranty. You can buy a lot of Bling for $30K or enough fuel to drive 150,000 miles.
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PostPosted: Thu Aug 12, 2010 4:11 pm   Post subject: Re: Ford V8 or V10?

V-10

I'd rather be overpowered than underpowered in pretty much any situation I can think of.

Unless fuel economy is a major deciding factor.
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PostPosted: Thu Aug 26, 2010 5:00 pm   Post subject: Re: Ford V8 or V10?

V10. It just feels good. I bought my 2005 from Quadvan in 2008 with a barn door, V10, tow package and 35k on it. It was like new. I paid $15k for it and then had them convert it. Yes the barn door is hard to find but they somehow have a knack for it. I didn't get the larger gas tank but wish I had. The conversion makes you loose 5 gallons when they cut the tank to fit the transfer case. I've put nearly 30K on it now and had no engine or tranny issues. I love this truck.
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PostPosted: Thu Aug 26, 2010 5:43 pm   Post subject: Re: Ford V8 or V10?

love my V-10 and would not trade it for a V8 ever..... I have the 5.4L in my everyday driver and have towed 5000 #'s across the country with it and it was struggling the entire time. I would much rather be over powered than underpowered any day of the week. Even my V-10 has had to go into the slow lane up serious grades so I can keep the RPM's down. The SMB is a 10,000 # rig which is about my daily driver plus trailer that I towed across country and as I said before it struggled most of the trip. Add a head wind in there and forget it..... I did the across country trip 4 times with the trailer and I am actually surprised my 5.4L transmission held up..... although it did just develop an internal leak between the transfer case and tranny which was causing it to slip some.

I would even venture to say the V-10 gets better gas mileage than a V-8 due to running in the lower RPM range on the freeway and not having to use as much power to get to speed. Hands down....get the V-10!
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PostPosted: Tue Aug 31, 2010 12:49 am   Post subject: Re: Ford V8 or V10?

Roonie wrote:
Even my V-10 has had to go into the slow lane up serious grades so I can keep the RPM's down. !


Roonie- you can't not use an engine to it's potential by "keeping RPM's down" and at the same time infer that it is somehow barely doing the job. The 2 valve 5.4 makes 350# of torque @ 2500 RPM and 255 HP @ 4500 RPM, the 2 valve 6.8 makes 420# of torque @ 3250 RPM and 305 HP @ 4250 RPM. Keeping the 5.4 below 2500 RPM or the 6.8 below 3250 RPM on a hard pull is not using the engine to it's potential. Gear down and let them rev. They are both very able motors. Low RPM crusing is fine loafing down the Interstate, not when you are climbing or pulling hard.
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PostPosted: Tue Aug 31, 2010 9:09 am   Post subject: Re: Ford V8 or V10?

Silver350 wrote:

Roonie- you can't not use an engine to it's potential by "keeping RPM's down" and at the same time infer that it is somehow barely doing the job. The 2 valve 5.4 makes 350# of torque @ 2500 RPM and 255 HP @ 4500 RPM, the 2 valve 6.8 makes 420# of torque @ 3250 RPM and 305 HP @ 4250 RPM. Keeping the 5.4 below 2500 RPM or the 6.8 below 3250 RPM on a hard pull is not using the engine to it's potential. Gear down and let them rev. They are both very able motors. Low RPM crusing is fine loafing down the Interstate, not when you are climbing or pulling hard.


Usually do this on hot days with full load and AC going up steep grades. When I see my transmission temps climbing I like to keep the RPM's down. Also in general the lower the RPM's usually the better gas mileage I get...

My 5.4 really has to work to get up a steep hill when I have weight and the RPM's really climb fast. Even with high RPM's the speed starts to drop. The V-10 on the other hand doesn't do this. The RPM's might start to climb but there is still plenty of power to make the speed.
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PostPosted: Wed Aug 03, 2011 8:21 pm   Post subject: Re: Ford V8 or V10?

I recently spoke with a mechanic who told me that the V10 is essentially the same engine as the V8, only with 2 additional cylinders so one would expect that the reliability should be fairly similar.

Might therefore go with the Quadvan 4x4 conversion as opposed to the Quigley as it looks like they can accommodate your preferences better.
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