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460 manual flywheel hunt

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Old 02-02-2016, 02:20 PM
Fordman7992 Fordman7992 is offline
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460 manual flywheel hunt

hey guys, I apologize in advance if this has been talked about before, I've read many threads and still haven't found my answer. I'm trying to put a 460 out of a 71 lincoln into my 79 ford. the original motor was a 351m, and I'm runnin the np435 manual transmission. I've got everything I need for the swap other than the manual flywheel. I bought one from a guy who said he'd used it in a similar swap before, and the flywheel wouldn't even fit into my bell housing. I've been searching for answers for months and getting nowhere, im getting really tired of trying to find a flywheel, and about to scrap the whole project. what flywheel do I need and where the hell can I find one? thanks in advance for any help I get
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Old 02-02-2016, 02:26 PM
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I did this same swap several years ago with a 71 429. I had the same flywheel issues. I tried a couple different internally balanced 460 ones and the back spacing was too deep, my bell housing wouldn't clear it at all. I ended up using the flywheel from a 390. They are internally balanced and have the same crank bolt pattern. It was still a little tight against my bell housing but I doubled up the plate that goes between the engine and transmission ( not sure what that's called) and everything worked really good then.

I forgot to add. L&L products used to sell (and might still) a clutch and flywheel set that is a direct bolt in for your swap. If you don't care to spend the extra money I'm sure it would simplify things.
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Old 02-02-2016, 03:30 PM
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77&79F250 77&79F250 is offline
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Here you go? ProjectBronco.COM! A 78-79 Ford Bronco Resource Center

Transmissions -- As far as the tranny goes, the 429/460 will bolt right up to your Bronco's stock transmission bell housing, however, there are a couple of things that may give you some problems you need to be aware of. First, some of the 429/460s used a different input shaft than the one that the Bronco 351M/400 uses. In this case, you are going to have find the correct torque converter/shaft combination that will work or have a custom shaft made for your swap. Second, the the 429/460 used two different types of flywheels -- one for the automatic transmissions and one for the manual transmissions. You need to make ABSOLUTELY sure that you are using the correct flywheel with your Bronco's engine and transmission! One other word of caution -- DO NOT try to reuse your 351M/400 flywheel with a 429/460 engine. Do what ever you like with it (make it into a clock, throw it at someone you don't like, or whatever) just don't reuse it! The 351M/400 flywheel will bolt right up to the 460, but all 429/460 engines are balanced differently than the "M" engines so the "M" flywheel simply will not work. Also keep in mind that the '79 and up 460 engines are balanced differently than the 78 and older 460s so be ABSOLUTELY sure to buy the correct year flywheel for your engine.
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Old 02-02-2016, 04:22 PM
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Alexz265 Alexz265 is offline
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The L&L kit takes all of the guesswork out and eliminates any fitment problems. It worked for me. Verify the number cast on your engine block. D9T starting numbers are external balance and other numbers are internal. Being a Lincoln and early 70s its almost 100% certain to be internal. You can theoretically piece it together yourself using a 302 pilot bearing, a 390 flywheel, and a diaphragm clutch (assuming internal balance). The crank flange on the 460 sits about 1/2" further after than a 400 or 351m engine and this causes the interference with the bell housing. If you have the money, L&L and be done with it.
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Old 02-02-2016, 09:58 PM
BLK79 BLK79 is offline
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x3 on L&L. I used their clutch/flywheel kit. Works great
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Old 02-03-2016, 09:22 AM
CurtLarson CurtLarson is online now
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4x for L&L, made it an easy swap after I attemped to track down the parts
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