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Can i put a 351M in my 1969??

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Old 09-25-2009, 12:27 PM
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larrylom
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Default Can i put a 351M in my 1969??

Hi I am just learning, but can I put a 351M in my 1969 convertible. I don't know anything about the M is this something people do? Is it a respectable engine?
Thanks
Larry
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Old 09-25-2009, 02:06 PM
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GA_Mach1
 
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yes you can, but there are far better engines out there with many aftermarket parts available. Define your goals, there are plenty of people on here who can help you out. Welcome to the hobby!
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Old 09-25-2009, 09:20 PM
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andrewmp6
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They are a mutt and best to be left in a truck.Its got 2v cleveland heads on it and uses a big block bell housing so your stuck to a c6 or toploader only.I would pass for a windsor or cleveland or a real big block over it.
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Old 09-25-2009, 10:27 PM
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2+2GT
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Originally Posted by larrylom
Is it a respectable engine?
It gets very little respect. The M requires the motor mounts and bellhousing of the 385 series (429/460).

There was never a performance version of this engine. You'd have adapt and modify your brains out to get a so-so engine into the car.

The 351W, introduced in the 1969 Mustang, is still in production from Ford Racing. They are also findable used, having been about 25 years of Ford vehicles.
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Old 09-26-2009, 12:38 AM
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andrewmp6
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If you want something with power and easy on gas look at a efi 302 or 351 both can have some upgrades easy.And for the tranny if your going to drive it a lot a over drive is great aod for auto t5 for a stick.
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Old 09-26-2009, 04:23 PM
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jfritts
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yup the 351m is better as a boat anchor than as a motor for ur mustang. go with a 351winsdsor or something bigger
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Old 09-27-2009, 05:20 PM
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2+2GT
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Originally Posted by jfritts
yup the 351m is better as a boat anchor than as a motor for ur mustang. go with a 351winsdsor or something bigger
As far as the 385 series (429/460) goes, you could install one of them with about the same effort as the 351M.

Even a stone-stock 460 would be major power in a Mustang. There are special headers and motor mounts commercially available for this conversion.
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Old 09-27-2009, 11:34 PM
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hiboostwoody
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I wouldn't do it either BUT, the winner of the Engine Masters challenge last year was a 351M's bigger brother 400M built by Jon Kaase racing. Made 698 horsepower and 619 ft/lbs torque at very low rpm but it had a pile of aftermarket and custom parts thrown at it to do it.
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Old 09-27-2009, 11:35 PM
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hiboostwoody
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For all the trouble, I would build a 393 stroker from a 351W.
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Old 09-27-2009, 11:56 PM
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rmodel65
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nothing wrong with the 351m just super low compression
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