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Old 09-10-2011, 06:02 AM
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Modifying a Modified?!

G'day all,

After almost 3 years of being to busy for anything, I'm going to soon get back at the old '79 Ford, got some body parts, glass, and almost enough room to put her in the shop. I was wondering if any one out there Knows about hopping up a 351/400 Modified, I have a good running one and would like to use it, but I don't know how much is interchangable with other big blocks. I can get a 460 for $600 and think it may be a better start. Any info would be a big help.

Thanx, Stylez.

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Old 09-11-2011, 03:00 PM
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I had a 351m in my 79 Bronco and used a performer intake/650 edelbrock carb/headers and some ignition parts and was never happy with power or torque with 35" tires. So finally I bought a 460 and did the same basic work with an early 429 head(for better compression) and full roller rockers, better headers and 3" exaust and wow, nothing but happy, I mean real happy, I can't believe the difference and wished I had not wasted my money on the 351m. Your choice, but why waste the money if even thinking of switching to a 460 The trans fits as a direct bolt up from a mod to 460 so that is a big money saver.
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Old 09-11-2011, 05:34 PM
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351/400 Ford

Several years ago we built a .030 over 460 for a Cobra kit car. On the dyno it made 466 HP at 5600 and 519 lb.ft of TQ at 4300. Hyd cam, 9.5:1CR, ported stock head.

Ron
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Old 09-11-2011, 10:25 PM
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I'm not a fan of the 351M/400 but they do have some potential. The bottom end is pretty stout. The first thing is to get rid of the stock timing chain and get one to advance the valve time a couple degrees, aluminum 4 bbl and a set of headers and it should be a fairly respectable engine compared to stock. I concur on the 460 swap though. Finding the right engine towers can be a bit of a search when you need them and you'll want to find a whole, complete 460 as you don't want to be chasing down things like the right pulley set or brackets and such. I think there are aftermarket engine mounts so eliminate the search for original 460 towers.
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Old 09-13-2011, 07:11 PM
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Thanks Guys, Sounds like a 460 is the way to go.
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