What's a 1966 428 FE out of a Ford T-Bird Worth? - Hot Rod Forum : Hotrodders Bulletin Board
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View Poll Results: Is a 66' 428 a bettter motor than a 73' big block 351?
Yes it is 16 88.89%
No it isn't 2 11.11%
Multiple Choice Poll. Voters: 18. You may not vote on this poll

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Old 07-04-2008, 10:39 AM
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What's a 1966 428 FE out of a Ford T-Bird Worth?

Can you guys help me out on a price for this beast. I'm wanting to sell this to raise the funds to rebuild a 351 big block in my 73' Ford Mustang Grande/Mach wannabe. Any help in this matter would be appreciated. The motor has 21,400 miles on it. It runs good and dosen't smoke. Thanks, Joedaddy
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Old 07-04-2008, 12:35 PM
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Well, if you can prove it's really a 428 and not a 390 then a at least a couple grand MINIMUM, of course that might change if it's been bored .060 or the crank is .030/.030, lots of factors. A std bore block is probably worth a grand by itself. Although right now things aren't selling so well do to the economy.
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Old 07-04-2008, 01:49 PM
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Original

At first my uncle and myself thought it was a 390 but after some research found it to be a 428. This is the original motor that was in a 1966/67 Ford Thunderbird. The car has set for almost 4 decades and the body is rough with rust. The motor however is in good shape and runs fine. We replaced a few things like gaskets and brass freeze plugs were added. Nothing has been changed internally from factory.
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Old 07-04-2008, 01:58 PM
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IMO as a Ford guy
there are too many variables.
428 is externally balanced. Are you sure it is a 428? Casting numbers?

Has it been rebuilt? bore? Actual mileage or not,
Sitting that long there IS an internal rust issue. Even if you got it running. It might become a smoker in 2000 miles.
How would anyone know if it was an overheated ruined mess when it got parked?

Blocks are not rare and nothin special.
3.98 cranks are available in aftermarket.

Itsa standard 428 not a unique 427.
It is worth what somebody is willing to pay for it.
It is pretty, but in actuality it is probably worth $ 6-800.

Last edited by ScoTFrenzel; 07-04-2008 at 02:08 PM.
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Old 07-04-2008, 03:44 PM
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I will ask again how you are sure that it is a 428 instead of a 390?? the 390 was the base engine in the T-bird and the 428 an option. The VIN code would tell you what it is SUPPOSED to be, but they share casting #'s on most components. The crank is the most valuable part in it. Because they were used in 428 CJ engines( not all of them), I have seen them go for as much as $750 and still not be pristine. The external balance on the flywheel, as mentioned is another indicator, but could have been replaced with the wrong one. The block is nothing special unless it has 428 cast into the center casting core hole on the sides. Many Cobra guys have had 390s bored to the 428 size after a sonic check. IF it is a 428( the crank # is the only absolute there) It probably is not more than $1500 worth complete, contrary to the $200 minimum someone else pointed out. I have just completed the 3rd 428 in the shop('67 GT500) and am about to do the fourth for a Cobra. As mentioned, the variables make or break it. A .030 over block is probably maxed out, so it leaves no room for boring..just sleeving. Because of the aftermarkets growing influx of new parts, you can get a new cast iron 427 block for around $3500 and stroker cranks for app.$800(or a little less). These are new casting metalurgy and standard size. That's the reason I stated that the crank is the most valuable piece in it. rods are same as 390, as are heads and all other external pieces.
I have a complete 351C Cobra Jet ( the 351 C is not a big block, it's really a large small block) if you are interested after selling your FE parts. I would verify WHAT it is by pulling the pan and getting the crank # before selling. I have seen several irate people voice issues with 390s they bought that were sold as 428s. It all comes back around.
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Old 07-04-2008, 03:56 PM
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As I looked at the pics I realize that it has a carb on it that wasn't introduced until '69 or '70. That means, to anyone with Ford knowledge, that it isn't stock. If the carb isn't, it's hard to say what else isn't. It may be a truck engine from the early 70s that was transplanted....so it is a questionable engine without head ,block ,intake and exhaust casting #'s...but it is the crank number that's the most important. That carb was only used on bread and butter engines, so it's not a CJ (they ran Holleys and that is an Autolite/Motorcraft 4300(?). It was the later carb that replaced the 4100 that should be on a T-bird of that era.
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Old 07-10-2008, 05:03 PM
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428?

I have checked 2 things on this motor. The first thing i did was confirm that the bore stroke was 3.98. The second thing i did was the drill bit test. A 13/64 drill bit was snug between the cylinder walls and the 15/64 drill bit wouldn't fit. It also has the letters and numbers on the block C6ME-A. Is there any thing else i can look at? Joedaddy
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Old 07-10-2008, 06:54 PM
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Quote:
Originally Posted by joedaddy
I have checked 2 things on this motor. The first thing i did was confirm that the bore stroke was 3.98. The second thing i did was the drill bit test. A 13/64 drill bit was snug between the cylinder walls and the 15/64 drill bit wouldn't fit. It also has the letters and numbers on the block C6ME-A. Is there any thing else i can look at? Joedaddy
That is all interesting, but if you knew FE engines you would realize that block casting # is on many engines. Without pulling the pan and getting a casting #, I wouldn't accept your stroke dimension if I were a buyer.You are only 0.10" difference(up and down) and going through a plug hole can be fairly inaccurate since they don't enter straight downward. The head casting #( between the center 2 ports) and Intake casting # would also be pertinent. An explanation of how an engine that was supposed to have been unaltered in the 'bird for so many years has a carb on it that was produced several years after the car would be nice.The drill test only illustrates how far it MIGHT be bored to, not what it is currently. Casting shift can limit that, that's why they are sonic tested prior to boring. If you pull the pan, you apparently knocked out the center core plug or you couldn't have done the drill bit test, you can get the casting # on the crank and rods, and can usually see the underside of the piston and get the Ford # there. The 3.98 crank was also in 410 Merc engines, which would also use that block #, as well as some 352s,360s,390s,410s as well as several truck engines. Finally, on the block where the filter housing is attached, they stamp the date code that the engine was assembled at the factory.
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Old 07-10-2008, 07:36 PM
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Quote:
Originally Posted by joedaddy
I have checked 2 things on this motor. The first thing i did was confirm that the bore stroke was 3.98. The second thing i did was the drill bit test. A 13/64 drill bit was snug between the cylinder walls and the 15/64 drill bit wouldn't fit. It also has the letters and numbers on the block C6ME-A. Is there any thing else i can look at? Joedaddy
The bore will be 4.13 inches and the stroke 3.98, that makes a 428

If the bore is the same as a 390 4.05 and the stroke is 3.98 that makes a 410.

Given the engine may not be original, a 410 isn't out of the question even though they weren't optioned on the 'bird.

The drill bit test is interesting as Ford added some meat on some 428 blocks, but this isn't conclusive.

Bogie
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Old 07-10-2008, 08:22 PM
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the casting date is correct for a '66-'67 T bird. in any case, it's better than a '73 351C.. '73 351C has low compression and big ports, not really good for any kind of performance.. you could mod it and make it better but what I would do is use the Tbird engine in your Mustang
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Old 07-10-2008, 09:50 PM
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This is my nephew, Here are all the block numbers on motor 2AE, CF60, C6A, CF58, C6EA,, CF60, 66F or 66T, We had pan off did not have heavy duty webbing on block, motor should be a 390 as the car was a TU DOR model, 428 went in FOR DOR models, its just that ford casting numbers are a pain to say for sure, didnt want to pull heads to check as is a running motor, the drill bit test was a hint from a ford site, he wants to sell the motor, but he wants to be sure what he is selling, like he said the car had been sitting for a very long time, the owners son was in college in the middle 70s so the motor or any of the parts of the motor could have been changed, but the motor did not have the look of a motor that had been messed with. All gaskets looked to be vintage 60s, but with all this and a dollar you can get a cup of coffee, should be a 390 but measured to be a 428, your guess is better than mine. P.S. thanks as always Wormy
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Old 07-10-2008, 09:52 PM
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428

As far as i know the guy could've done alot to the motor or changed it all together. He drove the car enough to get 21,000 out of it so i'm sure he might have changed the carb for performance. The windsheild has an inspection sticker and i have the big green title to verify the sit time. I guess i'll pull the pan back off and write those numbers down again to make sure. I just want to be positive before i sell the engine because i wouldn't want someone to tell me one thing and it turn out to be something else. Thanks guys , Joedaddy.
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Old 07-11-2008, 07:33 AM
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It sounds like you still have access to the car. The VIN # has the code of WHAT should have been in there. The numbers posted by Wormy are incomplete and since it wasn't stated from which part they come, are of little help. The numbers( other than the crank) should be at least 4 digits and have a suffix(i.e. C6AE-R). Remember that many FE parts were used throughout the line for, sometimes, many years. So it may have some #'s that start with a C5 or C4 (64 or 65). But the crank # is really the most critical. As I mentioned in an earlier post,the crank is probably the most valuable part there. Since they were used in CJ engines they can and have sold for as much as $800 in good shape. That was a couple years ago when I needed the correct one for an early '69 CJ, I doubt that they have gone down. Restoration people can be anal about #'s...even when they aren't visible.The heavy duty webbing is really spotty, I have had CJ's( always webbed) and a couple of PI blocks( some with the webbing and some with only partial) and a 390HP block('64) that has extra thick webbing as well as the crossbolt castings. Casting cores were used fairly liberally and the 428s didn't all have extra ribbing. Lastly, the door count is irrelevant as the 428 was an option, so it could have been optioned in a 2dr.
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Old 07-11-2008, 11:15 AM
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The car vin is 7Y62Z10456 body-65B color-N trim-2B date-19H DSO-19H axle-W1 trans-U ,this is all info from door tag will post more pics of casting numbers and motor in general Wormy
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Old 07-11-2008, 11:29 AM
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VIN says car is 67.
Z is a 390
http://automotivemileposts.com/tbird...fications.html


I think you mis-wrote those door tag numbers. DSO is wierd.

added
You also don't have enough numbers in the VIN, should be 6 last digits, not 5.
Car was built 19 August 1966, so maybe the 456 Bird off the Wixom production line.

Last edited by ScoTFrenzel; 07-11-2008 at 11:48 AM.
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