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Swapping 302 for a 460

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Old Mar 4, 2005 | 11:05 PM
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Post Swapping 302 for a 460

I just picked up a 82 Bronco and it has a TIRED 302.
I have found a 460 Complete and bellhousing that I would love to
Drop in the 82. ( Thats the statement, Here's the Question)
Will I have any Problem's with Crossmember for the new oil pan and
also Heater housing, and the list goes on.
Any help or Forsite in to this would be a Great Help.
Thank You !
 
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Old Mar 4, 2005 | 11:48 PM
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Originally Posted by Racerrob
I just picked up a 82 Bronco and it has a TIRED 302.
I have found a 460 Complete and bellhousing that I would love to
Drop in the 82. ( Thats the statement, Here's the Question)
Will I have any Problem's with Crossmember for the new oil pan and
also Heater housing, and the list goes on.
Any help or Forsite in to this would be a Great Help.
Thank You !
Front springs--you are looking at maybe 400 more lbs up front. Radiator and as you said, the list will go on.

I have a friend who went 460 from a 400. Lots of road-hugging weight up front, to the point where he took his winch off so it would drive better, and overheating issues at idle. Other than that, it was a great swap.

You should do some transfer case research, too. Might the unit behind the 302 be lighter than needed for a 460?
 
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Old Mar 5, 2005 | 01:23 AM
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The 460 swap is actually more common than you might think. Jeff's Bronco Graveyard has quite a bit of info and just about everything needed to do the swap. 85e has a good point about the additional weight over the axle. The 460 was dropped into the heavier (3/4 & 1 ton) trucks so the fit should be pretty good. Autofab makes an indestructable set of motor mounts for this swap. www.autofab.com
 
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Old Mar 5, 2005 | 09:37 AM
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A search of the form will turn up lot of fun little facts about the swap.
http://ylobronc.users.superford.org/460/
Just one I found.
Search is on the top tool bar I just put in 302 to 460 swap bronco.
 
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Old Mar 6, 2005 | 07:09 PM
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Talking Different Running Gear?

Originally Posted by 85e150six4mtod
Front springs--you are looking at maybe 400 more lbs up front. Radiator and as you said, the list will go on.

I have a friend who went 460 from a 400. Lots of road-hugging weight up front, to the point where he took his winch off so it would drive better, and overheating issues at idle. Other than that, it was a great swap.

You should do some transfer case research, too. Might the unit behind the 302 be lighter than needed for a 460?
I was thinking about putting F250 Running Gear in it so I could handel the 514 that will be taking the place of 302. And going with Solid Axle for front.
What do you Think?
 
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Old Mar 7, 2005 | 05:03 AM
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Most will say you need to swap to the straight front axle when running a 460.
 
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Old Mar 7, 2005 | 05:59 AM
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That Is what I want to do.
But I want to change out my whole suspension for F 250.
Would that be better?
 
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Old Mar 17, 2005 | 06:16 AM
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I dropped a 460 in my 84 Bronco - I used the Stock (well heavy duty 4 row) 351W Radiator - I have absolutely no problems with over heating!

Heaterhousing - The 460 won't interfer with it... though the #4 plug will be a bear to replace... I ripped out the A/C condensor in my 84. The A/C didn't work and I didn't want to be bothered with trying to hook up the A/C to the 460...

L&L Products makes everything you need to do the swap, Mounts, Pan, Remote Oil Filter kit, etc.... Email me if you have any further questions..
 
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Old Mar 17, 2005 | 06:49 AM
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Originally Posted by Racerrob
That Is what I want to do.
But I want to change out my whole suspension for F 250.
Would that be better?
If you are refering to the F250TTB set up then no it won't work unless you mod the mounting points. The F250TTB is has different mounting points than the F150TTB set up. Even if you get the F250TTB to fit it still won't be as good as the straight axle dana 44.
 
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Old May 25, 2005 | 03:55 PM
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hey i did the swap in my 89 with the zf tranny, and its awsome. i would do it again if i had to. the only problem i'm having right now is finding the springs to support the extra weight. i have a 3 inch lift and i lost an inch and a half up front. i'm thinking of installing 4 inch coils. but we'll see. as far as the t-case.i beat the hell out of my truck and the t-case holds up fine. any more questions i'll be happy to help.
 
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Old May 25, 2005 | 07:58 PM
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L&L makes pretty much everything you need for 460 conversions. You should check out the engine swap forum to get some ideas on stuff you can use from the junk yards to save alot of money if you have the time.

You can have custom front springs made by Deaver or National Spring to carry the additional weight.

As far as the 460 goes, I would seriously look at upgrading your axles if you are planning on adding more HP/TQ to that motor.

I'm in the process of swapping in a solid axle D60 front and D70 rear in my F150 with a 393 stroker. I want to be able to not have to be "gentle" with it, thats definitly not what I own a truck for! You can get upgrades for your stock axles, but if you like to drive it hard you will still be breaking parts, trust me I know. I would start looking around the yards for some stronger axles now if you plan to drive her hard instead of spending hard earned $$ for upgrades that amount to bandaids for those stock axles compared to the strength of 1 ton axles.
 

Last edited by 94F150-408; May 25, 2005 at 08:00 PM.
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Old May 25, 2005 | 11:45 PM
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You just need to get some F250 springs, that sholud solve part of the extra weight issue.
 
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Old May 26, 2005 | 12:41 AM
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Front Springs, Front Springs, Front Springs.... If you are going to keep the Trucks suspension stock then You can get Stock F-150 springs to replace the front coils in your Bronco. I did lots of flipping through the Spring catalog at a local Napa dealer to find the coils I wanted to use... I would not recommend putting F-250 springs in place the ride will be too harsh... I know... trail and error for me..

F-150 extended cab 4x4's use a heavy duty coil that is the same install height / free height as Broncos. Those springs have a 300 pound higher load rating than the standard or even the heavy duty coils listed for the Bronco. Those F-150 coils work just fine in my Bronco which has a 460. I wish I was back home because I could just go into my MOOG chassis part catalog and tell you the exact spring to get....


As far as drivetrain being able to handle the 514 - it all depends on what you plan on doing with the truck. Like I said I have a 460 in my Bronco w/C-6/NP-208 combo. 9" rear and D44 TTB up front. I do not wheel this truck, but I do tow with it... I tow my beater bronco on a car trailer. I have a tranny cooler and the truck doesn't over heat.
 
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Old May 26, 2005 | 01:27 AM
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I think you still might end up with some sagging issues up front eventually if you use the F150 coils. The F150 coils are made for use with the 302 or 351, so with the additional weight of the 460 they will be a little light.

If this guy does build a 460 into a stroker 514, the stock axles will be grenaded if its romped on, the stroker hi po puts out gobs of torque and with the weight, big tires and all that power, better get the one ton axles!
 
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Old May 26, 2005 | 02:10 AM
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Eventually sure.... but for $70 bucks for the springs he should be good... I should have mentioned that the Heavy duty coils for the F-150 extended cabs are for use with a plow setup. The frame alone adds an easy 100 pounds effectively that is equal to about 200 pounds of engine weight since the engine is directly over the springs and the plow frame is 3 feet forward.

I too would like to know his intentions for the Truck - My 460 puts out approx 450hp / 550 ft lb torque. I do "romp on it" more often than not and spin my 32" BFG/AT's, so far my 9" is holding up fine....
 
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