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390/460???

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Old Jul 5, 2022 | 02:56 PM
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390/460???

I currently have a '78 150 4x4 4spd. with wasted 400 M. I'm looking to go either '72 390FE or '71 460. Both motors need flywheels. Trying to decide which way to go? Mounts, starter, etc??
 
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Old Jul 5, 2022 | 03:12 PM
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Myself I'd prefer the 460. Seems to have more parts available aftermarket and an easier path to a performance build if that's how you choose to go.
 
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Old Jul 5, 2022 | 04:01 PM
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Both are great engines and the conversion is money well spent.

Since the 460 is the easiest conversion in your rig that's what I'd do. and have done.
 
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Old Jul 5, 2022 | 09:00 PM
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I'd rebuild the 400, but if you are dead set on a swap, the 460 will be easiest because it will bolt to the bellhousing.anyway. Do yourself a huge favor, read up every thread here concerning swapping a 429 or 460 in place of a 351M or 400. You are gonna need engine and accessory mounts, exhaust, etc.

Have fun.
 
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