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Old 03-06-2006, 01:41 PM
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460 Build up

Hello all,
I have a '79 bronco that needs a new engine. I've looked at rebuilding the 400m that's in it, but my dad has an '86 F250 with a 460 sitting in it not being used. It also needs a rebuild. I've looked at the atvantages of keeping the stock, and swapping out to the 460 and have decided that swapping is what I want to do. I intend on using and building the '79 for fairley heavy duty 4-wheeling. I'd like to go with 40's or greater maybe 44's if I can fit them under there, so I need a good bit of umph to keep them moving. I'd like to do a mild build up(450-500) hp--but on a budget. The engine needs new heads and carb, and probably a new intake. It ran not long ago, and will come to life with a little TLC. Last it was running it still had lots of power as long as you stayed on the gas. Has anyone undertaken a project like this one? and if so, where can I get the parts that I am looking for a reasonable price. I need to be able to order online since I will not be moving back to the states for almost another year. I'd like to have the parts ready so that when I get back I can get started. I'm willing to dump $800-1500 in this engine. This is my first re-build although my dad has in the past and was a ford certified mec. Any and all help would be great. Thanks! Jflaniken

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Old 03-06-2006, 04:39 PM
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Modified to Lima

A friend of mine used to have a 79 f-150 4x4 that originally had a 351M. We swapped in a 460 with no problems. The 351/400M's have the same bellhousing pattern as the 385 series (sometimes refered to as the Lima family of engines 370, 429, 460). The modified motors didn't have the best oiling system and make a good boat anchor! I would definately go with the 460! The green beast as we used to call her would eat your typical 5.0L mustang all day. It had a stock 4v engine with a 750dp and 2 1/4" dual exhaust, 3.55 gears and would roast the 33x12.5s easily. Man that truck pulled hard. I'm not a ford guy but that old rusty tank was a blast.

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Old 03-06-2006, 06:09 PM
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If you plan on spending a limit of 1500, then it should go into things like headers a good exhaust, and an rv cam, an intake manifold and a good 4bbl carb. All the basics. Will probably make 350 hp but the torque will be through the roof. BTW 78's and 79's are my fav. broncos.
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Old 03-06-2006, 06:32 PM
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A 460 rebuild should not be too bad or too expensize if the short block is in decent shape. One fellow racer has one in his 78 Bronco with cast iron manifolds, 268 cam, Performer intake and Edelbrock 750. Another has a 429CJ in a 79 f-150 with cast iron manifolds, Stealth intake, Holley 670 and Crane cam(not sure on specs). Headers are expensize for this kind of swap and prepare to spend 1/3 of your budget. They both run pretty decent but both have stock 3.50 gears with one turning 33" boggers and the other turning 33" TSL/SX's. If you are looking at turning 40 to 44 tires, look at upgrading your drivetrain. If you keep them open front and rear, they will live a little longer but even then will be taxed by the weight of these tires and rims in stock form. Better keep in mind upgrading the drivetrain too if you are going to wheel it hard.
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