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Old 03-13-2013, 05:22 PM
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Trying figure out what engine to buy

I have a 73 mach1 and I'm thinking about putting in a newer motor with a computer so ill have the chips put in r should I just stick to a 429 that I have

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Old 03-13-2013, 05:32 PM
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Keep the 429 please!
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Old 03-13-2013, 05:38 PM
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Put a new Coyote in it
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Old 03-14-2013, 09:13 AM
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Well the 429 has aftermarket cam dove heads stainless still valves rocker arms and a **** load of polished aluminum parts on it for $1500 is it a good buy because its just a regular 429
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Old 03-14-2013, 11:34 AM
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A "regular" 429 is a GREAT engine. What do you need a "chip" for? A '73 has zero computer components, and they're not needed. The electronics are nice and all, but "necessary" for the modern "little" engines to "keep up" with a "regular" 429...

For clarity, they're not "dove" heads. They are "D0VE" That is, "D zero VE". D = 1970s era. 0 means 1970 casting. VE means multi-use (cars, pickups, etc.).

You don't need a Cobra Jet to make power. Also, a 460 crank, rods and pistons make it a 460 (same bore size). A 501 is a crank grind away...

BTW, the "flat back" is my favortie of the Mustangs...

FWIW

Jim
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Old 03-14-2013, 12:01 PM
How fast is fast enough?
 
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Quote:
Originally Posted by Mr. P-Body View Post
The electronics are nice and all, but "necessary" for the modern "little" engines to "keep up" with a "regular" 429..
you must not have a clue as to what the "electronics" actually do.

They are not for power but for engine management and do one hell of a lot better job than a carb with a mechanical distributor.
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Old 03-14-2013, 01:10 PM
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Small Block Chevy! it will be faster and lighter and last longer.

Or the 429 the resale value alone is why I would do the 429. With any other motor resale will be lowered might as well have a chevy if your going to have a mod motor under the hood.
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Old 03-14-2013, 02:46 PM
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A chevy engine in a FORD MACH 1 .
Man if you have a 429 mustang KEEP IT THAT WAY.
With some tuning you can make it run with a carb and a non electronic dizzy.
If you want to go EFI you can go to one of the aftermarket EFI setups and an electronic dizzy with computed timing .
Putting a 350 chevy in it would be DE TUNING IT.
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Old 03-14-2013, 03:23 PM
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mustang

if that 429 is factory in your car ??? do not replace it...
even if not i still keep it..
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Old 03-14-2013, 04:02 PM
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Thanks for the info I was just asking I don't have any for guys to ask local. And I would never put a Chevy in a mach1 that's just stupid .dont think I don't like Chevy I drive a 64 step side as a daily driver , I love both of them. Again thank I'm going tomorrow to pickup the 429
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Old 03-14-2013, 04:03 PM
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I mean ford
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Old 03-14-2013, 04:17 PM
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I found another 429 for $500 he said it runs but can I trust him ??????????
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Old 03-14-2013, 04:25 PM
How fast is fast enough?
 
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If you want a fun car for not a lot of money I would drop at 3:02 with T5 in it.
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Old 03-14-2013, 04:54 PM
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The 429 is not exactly a cheap motor to build up, it will cost $$$ compared to just about all other choices but it would be the choice for that car yes.

And the closest thing chevy that you should install is the factory Qjet carb that came on some of the cobra jets of the day. Qjet on a ford no kidding.
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Old 03-16-2013, 12:06 PM
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I always say chevy for one main reason bang for buck you can get more HP out of a chevy 350 for less money than any other motor you can buy. Not that its a good idea. But lots of fast mustangs have chevy motors. Just one trip to the drag strip you can see at least 3 of them. Many over 500 hp. Not a cheap number to hit with older fords.

A collector will consider any none factory engine as "Not Right" weather its a chevy or a ford or a dodge hemi. the value is not effected by the engine unless its numbers matching.

If you have an original 429 car sell it and buy a beater you can buy alot cheaper and build up. I would not put a 302 or a none numbers matching 429 in the car. As a restoreable car its worth good money as a frankenstein no matter what motor is not in it the value is lower even if its runing ang driving well.

I would not go all out with the 429 either its too costly let someone else loose that cash to make a fast mustang. You can get a cheap mach1 that came with the lame motor and drop a 4.6 motor into it cheap and be on the road with good power and mpg. Avoid the trap of the 302 and the 460 both require some real expertise to make big power with.
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