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Old 11-04-2012, 09:55 PM   #1
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460 in your bronco ... I dont get it

So i have been reading a bunch about swaping a 460 into my bronco, and for the $ i dont get it. I am looking at picking up a JY 400m and rebuilding it this winter with edelbrock cleveland heads, intake, holly carb, cam, and some high comp pistons. I keep running he numbers and i see some great ability to make power from the 400 at about half the price of a 460 swap ... Am i missing somthing? What am i looking at wrong, because i know i cant be the first to raise that question.
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Old 11-04-2012, 10:26 PM   #2
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no replacement for displacement.

i want to build a torque monster that will pull the mud out of a ditch... i have plans to swap in a 460, in place of my 351.
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Old 11-04-2012, 10:26 PM   #3
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What numbers?won't every swap be different? And just an FYI....cost me about $800 to swap mine in and that is including the motor!start looking at performance parts for your 400....you won't find that many compared to the 460.don't knock the 385 series until you've driven a bronco with one.

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Old 11-04-2012, 10:28 PM   #4
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no replacement for displacement.

i want to build a torque monster that will pull the mud out of a ditch... i have plans to swap in a 460, in place of my 351.
put in a diesel if you really want a torque monster
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Old 11-04-2012, 10:34 PM   #5
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i would, but there is a lot more to that then a simple gasser.
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Old 11-04-2012, 11:03 PM   #6
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What numbers?won't every swap be different? And just an FYI....cost me about $800 to swap mine in and that is including the motor!start looking at performance parts for your 400....you won't find that many compared to the 460.don't knock the 385 series until you've driven a bronco with one.

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Ok now thats an answer. I was looking at threads saying it cost 4k to swap. I know a junk yard 460 can be had for super cheap. And i know there are a lot of things you need to make it work, but that gives me a lot of hope. So maybe the 460 isnt out. Just dont have a ton of experience so maybe thats my biggest issue. Thanks a 3/4 ton
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Old 11-04-2012, 11:47 PM   #7
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junkyard wise it's a cheap swap. Unless you are swapping in the fuel injection, then you might as well buy a parts truck. Just because most big junkyards want to charge for every little part.
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Old 11-04-2012, 11:49 PM   #8
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on newer trucks it can cost more but every build is different as he said. if you wanted an EFI 460, rebuild it, mod it, it will add up. plus if you dont have a big block tranny then you have to get a new one. pick a used tranny and rebuild it. if you had to do driveshafts also for whatever reason, that adds up. all depends on the build
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Old 11-05-2012, 07:55 AM   #9
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put in a diesel if you really want a torque monster
And if you want to spend a lot more money and add a bunch of weight.

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Old 11-06-2012, 01:18 AM   #10
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I swapped the 460 because it was cheaper than trying to fuel inject my 400. The added power was just a bonus.
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Old 11-06-2012, 01:25 AM   #11
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And if you want to spend a lot more money and add a bunch of weight.

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Money yes, weight no. Couple hundred pounds is irrelevant. Just being fair here.
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Old 11-06-2012, 03:43 AM   #12
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What numbers?won't every swap be different? And just an FYI....cost me about $800 to swap mine in and that is including the motor!start looking at performance parts for your 400....you won't find that many compared to the 460.don't knock the 385 series until you've driven a bronco with one.

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So what does the 460 have that the 400 does not have in the aftermarket? Excessively stroked cubic inches does not count.
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Old 11-06-2012, 04:09 AM   #13
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And if you want to spend a lot more money and add a bunch of weight.

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money yes....
cummins 5.9 weight 1010lbs...
ford 460 weight....803lbs....

compare the torque numbers and you'll find a cummins will out pull a 460 even with the added weight. not to mention how many 460's can produce 800+hp and 2000+lb/ft of torque? there's a quite a few 5.9's that do. i'm not knocking a 460 swap. they're a good way to gain power for a low price. but for a true torque monster you can't beat a diesel.
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Old 11-06-2012, 06:15 AM   #14
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money yes....
cummins 5.9 weight 1010lbs...
ford 460 weight....803lbs....

compare the torque numbers and you'll find a cummins will out pull a 460 even with the added weight. not to mention how many 460's can produce 800+hp and 2000+lb/ft of torque? there's a quite a few 5.9's that do. i'm not knocking a 460 swap. they're a good way to gain power for a low price. but for a true torque monster you can't beat a diesel.
This. If you want to talk about pure grunt it's pretty hard to compare near any gas engine to a cummins. And those which could be compared aren't likely to be near as reliable or have half the longevity. The only possible downside I see is weight distribution. I can totally understand doing a 460 for budget reasons though and no doubt it's still got massive torque.
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Old 11-07-2012, 11:51 PM   #15
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More heads,cams,intakes,stroker kits,etc.

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Old 11-08-2012, 01:35 AM   #16
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my dream engine is a 460 stroked to a 545, built right with a roots blower and all the trimmings. 1,000 horsepower, 1,000 torque. oh yeah.

Im sure obama will make it illegal to drive on the street though.
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Old 11-08-2012, 03:46 AM   #17
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More heads,cams,intakes,stroker kits,etc.

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20 years ago yes. Today... no.

Heads are all ovet now. Cams are a stupid thing to even bring up. And there is stroker kits nearing 500 cubes. So really there is nothing to say about lacking aftermarket parts.
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Old 11-08-2012, 09:30 AM   #18
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What about ease of EFI? Arent you guys running custom intakes to make the 400 EFI? Or has something hit the market now?

For the 70s trucks i can understand starting with a 400 but considering how easy it is to drop a 460 in an 80+ using 100% oem parts, it seems silly to me to spend the time to try to slap a 400 in one (yes i know the m blocks were still available in 80). My efi 460 swap cost me ~700 (including motor/trans)and used no aftermarket parts, except for the headers. Cant beat that.


For those arguing the available torque of a diesel, lets be honest here. The average person has no use for 1000 ft lbs, let alone 2k ft lbs. Unless youre racing, you just dont need that kind of power.
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Old 11-08-2012, 10:24 AM   #19
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Im sure obama will make it illegal to drive on the street though.
isn't that the truth
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Old 11-08-2012, 11:12 AM   #20
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20 years ago yes. Today... no.

Heads are all ovet now. Cams are a stupid thing to even bring up. And there is stroker kits nearing 500 cubes. So really there is nothing to say about lacking aftermarket parts.
maybe you're right.....but if you had xx amount of dollars to dump into either a 400 or a 460, it would be stupid to opt for the 400, everything else being equal.
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