460 vs 351
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Tuned
Joined: Aug 2009
Posts: 274
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From: British Columbia
460 vs 351
I'm looking at 2 trucks and am trying to make up my mind and need alittle help. Trucks are comparable condition and mileage, one a 460 the other a 351. I've never owned a 460 so am a little concerned about fuel consumption. What should I expect the difference to be?
I pretty much drive like the old man I'm getting to be, so not that heavy footed.
I pretty much drive like the old man I'm getting to be, so not that heavy footed.
Senior User
Joined: Jan 2012
Posts: 232
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well yeah will you be towing and hauling? they both get 9-13 like he said but if your not gonna tow that 460 will kill you, but i personally thing that you should do a few upgrades to either one to harvest more gas milage, if you never tow get the 351 and do things like headers, cams and heads and it should put you up to like 13-16, the 460 is hopeless if you want more mpg really
FTE Legend
Joined: Sep 2003
Posts: 53,968
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From: NY and VA
I own and drive both. Both SC, F250, 4.10 rear, 2WD, C-6, dual tanks, Holley 4V, single,stock exhaust. The 86 w 351 does not compare that well to the 87 W/460 when towing as far as pulling goes, esp. on hills. Running empty 86 gets 14mpg on a trip, the 87 - 10mpg. Loaded and pulling a trailer with car or backhoe on it, the 86 gets about 8mpg, the 87 - 6mpg. My son's 89 460 with similar set up but EFI and 3.73 rear and duals.would get 10-12 towing as mentioned above.
Laughing Gas
Joined: Feb 2004
Posts: 1,115
Likes: 13
From: west plains spokane,wa
If you live in a hilly/mountainous area or pull anything I would go 460. I have had a couple 351's in this gen truck with 5spd 3:73 gears and had to downshift to 3 or 4th gear going uphill. Worse if towing anything. Don't see any significant difference in mileage between them.
Posting Guru
Joined: Oct 2011
Posts: 1,179
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From: Pueblo, CO
I have a '90 F250 supercab 4x4 with a 460/C6/3.55:1. I was a bit underwhelmed by the acceleration (I haven't towed or hauled with it yet) but it didn't turn out to be quite the gas guzzler I expected. Sure on a normal daily drive it's down around where you'd expect but one time on a 60 mile drive I was taking it very easy staying under the speed limit with a tailwind and mileage worked out to be so high I still don't believe it so I'm assuming I'm off somewhere and rounding DOWN to 15mpg.
If you're very concerned about fuel economy than a gas-powered fullsize pickup might not be for you. I paid cash for my rigs so the money I save in payments and insurance is quite a bit more than what I'm paying at the pump.
If you're very concerned about fuel economy than a gas-powered fullsize pickup might not be for you. I paid cash for my rigs so the money I save in payments and insurance is quite a bit more than what I'm paying at the pump.
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Tuned
Joined: Aug 2009
Posts: 274
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From: British Columbia
Thanks for the info, sounds like a bit of a crap shoot. I will usually have a small camper on and will be for highway trips. I've got an explorer for my daily driver.
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Logistics Pro
Joined: Mar 2011
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From: Central Wisconsin
If you are just going to pull a small camper, go with the 351w. in stock form there is of course a difference, with 1 being 109 CI bigger than the other. but the 351 will pull anything that the truck is rated to pull, the 460 will just have an easier time pulling heavy loads. I think it's overkill unless you regularly pull a loaded gooseneck trailer.
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Senior User
Joined: Feb 2012
Posts: 219
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From: Cheshire Massachusetts
My opinion is a little different than anyone else's...I think anything less than the 460 in that generation of truck is pretty severely under powered. Even the 460 is in stock form is a little under powered in my opinion.
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Joined: Aug 2009
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From: West Fargo, ND
Logistics Pro
Joined: Mar 2011
Posts: 4,197
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From: Central Wisconsin
mine is the same way. Although it really comes down to gearing. A 351w with 4.11 gears will pull harder than a 460 with 3.08 gears. But even with that in consideration, with 3" exhaust behind my 351w and 3.55 gears, it'll pull anything that I put behind it. And it's a speed density non roller motor.
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Tuned
Joined: Aug 2009
Posts: 274
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From: British Columbia
How about I muddy the waters a little. There are a lot of 96 and older 4x4s in this area with 7.3 diesels. How does fuel consumption compare between the diesel and gas. Like I said this truck will not be a daily driver.