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460. Same or better mileage as a 351 and more torque. Brutus gets 13+ even after the 37s. Easy bolt in, plentiful donor vehicles and keep EFI with no tuning issues you may have with a modded up 351. Plus, everyone has a small block F150....
Going diesel even the completely awesome IDI = just buy a different truck, swapping one into a F150 is pointless.
Idk what would make anyone say that 400 heads don't flow, Cleveland family engines of which the 400 is one are infamous for great heads. They have been the root of the vast majority of the infamous Ford performance engines. Yeah, you got to do a little head shopping to do it right, Aussie heads I'm sure are beyond his budget but some 2V Cleveland heads will do just fine and are around cheap enough.
Left to right, 351W, 2V Cleveland, 4V Cleveland.
400HP should be pretty easy, that's only one HP/CI. Yeah, the 335/Cleveland family doesn't have the support that the Windsor does. And no matter what building one is more expensive then a Windsor. But there is enough support now, pistons, manifolds, headers, etc. it's all out there at decent prices.
Steve, quadrajet really? There is an argument for spread bore, but Holley 4175.
If the truck is run loaded most of the time then go 460. Easy to get power out of them. A decent cam and pistons that get you close to 10:1 and you will be good to go. None of these get very good MPG. My truck weights 9100 lbs empty it runs real strong pulls good and and I regularly load it to 19,000 lbs and it still runs 70-75 mph with not much effort. Fuel mileage 8-10 mpg. 351W is a good motor just doesn't have the torque for a working truck
If you get a 460, you'll need to upgrade springs & I don't know what else suspension-wise. I know a good 460 is hard to beat for power & durability.
I'd personally consider a well-built small block (351w), unless it will be used to haul and tow significant weight/mass most of the time. Good luck. I'm not brave enough w/vehicles to do an engine swap. I kinda envy you.
460. Same or better mileage as a 351 and more torque. Brutus gets 13+ even after the 37s.
it's extremely difficult to believe someones 460 truck can hit "teens" for MPG's with no lift and oem tires running empty 55MPH on the hwy non stop in ideal conditions.
i say this because we have loads and loads of 460 economy reports on this site.if you spend an hour looking up all you could find (perhaps 25-30? maybe 50 reports if you spend an hour) and averaged them all,it would be interesting to see.my guess it would be probably be 7 or 8.
when someone claims they can hit teens,with a lift and 37's....well im just saying your truck is in a tiny,tiny,tiny minority being able to compare with 351 economy of 12-13 hwy mpg (with no lift/oem tiers.)
i don't doubt you believe your odo/math but if you look into different mile measurements (gps/google maps) and perhaps do a consecutive 10 tank calculation,you might see different results.
Originally Posted by wtroger
If the truck is run loaded most of the time then go 460.
Difficult as it may be, it is true (on hwy). RCLB ZF5 with 4:10s. Keep it under 65 and don't drive it hard. I drive to New Bern NC, 165 miles round trip on 12.5 gallons. I am a 44 years old, I know how to do simple math.
I'm not expecting extremely great gas mileage cause I realize it's a truck..not a car. but what all would have to be done to fit a 460 in the truck? Would a mildly built 460 get about the same mileage as a mildly built 351W? Do you think it's worth it to do a 460 swap or would that be a waste of time/motor/money? Also is a 4 speed transmission good enough or should I get something like a zf5?
but what all would have to be done to fit a 460 in the truck?
Enough that unless there is a good reason to keep what you have you might as well just buy a truck with a 460. Better truck, cost half as much, take comparatively no time at all.
Originally Posted by steve33444
Would a mildly built 460 get about the same mileage as a mildly built 351W?
No worse.
Originally Posted by steve33444
Do you think it's worth it to do a 460 swap or would that be a waste of time/motor/money?
IMO it's a waste.
Originally Posted by steve33444
Also is a 4 speed transmission good enough or should I get something like a zf5?
what if I went with a 351w? 4 or 5 speed? What kind or transmission?
Depends on your use, budget, effort. Small pattern ZFs are harder to come by. M5ODs are common, cheaper, but not as good. Any freeway time? It's really about the OD and you'd only use that on the highway.
Depends on your use, budget, effort. Small pattern ZFs are harder to come by. M5ODs are common, cheaper, but not as good. Any freeway time? It's really about the OD and you'd only use that on the highway.
I'm not sure if I want overdrive or not. I'm mainly on old back roads and off road so I don't think I need overdrive. Maybe a 4 speed with granny gear? Or do I not need the granny first gear? Did ford make a 5 speed with a granny 1st gear?
02-07-2015, 01:20 PM
