So I find myself with a spare 428....... - Vintage Mustang Forums
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post #1 of 24 (permalink) Old 07-12-2019, 02:32 PM Thread Starter
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So I find myself with a spare 428.......

Hey guys, very new here so this topic has likely covered already.

Long story but I recently acquired an amazing 69 Mach 1 428 SCJ and the previous owner decided to not put miles on the numbers matching motor and trans, he had a fresh motor built and when I purchased the car I worked out a deal I couldn't say no to for the car and spare motor and spare C6. New Motor and trans have less than 200 miles on them.
Now I have a 68 Fastback that has a crate 302 with less than 1000 miles on it and I'm thinking how much fun would that car be with a 428!!

Anyone dropped a 428 into a 68 Fastback? Any comments?
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post #2 of 24 (permalink) Old 07-12-2019, 02:45 PM
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If only they were as easy to swap as an 8 or 9 inch diff...
I would go for it if you won't drive it much ! !

My 1st car...
'66 Tahoe Turquoise/ Aqua coupe
•289 / 4100 •C4 Auto •Disc Brakes
•Dual Exhaust •Quick Manual Steering
•Rally Pac •Console •Deluxe Belts
•LOTS of Rotunda accessories

Older son's 1st car...
'66 Emberglo / Parchment deluxe coupe
•289 / 2100 •C4 Auto
•Dealer A/C • Console
•Dual Exhaust • Power Steering

Younger son's 1st car...
'66 Nightmist / Blue & white deluxe coupe
•289 / 2100 •C4 Auto
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WAITING FOR RESTORATION

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post #3 of 24 (permalink) Old 07-12-2019, 02:52 PM
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It’ll be tight, but a 428 fits.


Sent from my iPhone using Tapatalk

-Chris

'68 Mustang
347ci that has a lot of neat stuff in it
T5 manual trans, alum driveshaft, 9" w/3.70 gears
Suspension parts from SoT, Global West, Maier Racing, and a few others. Works for me!
TCP manual rack (love it)
EPAS (Love this the most)
VWW V45 wheels (like these too)
SoT 13" brakes (stopping is good)
And I finally got a paint job!
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post #4 of 24 (permalink) Old 07-12-2019, 03:00 PM
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If I understand this correctly,



You bought a 69 that the PO pulled the 428 and C6 out of to "preserve them". You got the 428 and C6 with the car.


You also have a 68 with a crate motor.


You are considering putting the original numbers matching 428 from the '69 in the '68?


If you have a hankering for a big block I would put it in the 69 and keep it together. I would consider the motor that is currently in the '69 as the spare not the 428.


Just my $.02
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post #5 of 24 (permalink) Old 07-12-2019, 03:02 PM
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I have seen a '66 with a 460, so I am positive you can fit a 428 in a 67(same basic engine as the 390 after all). As to whether you should do it...that depends...your handling will suffer for sure...and you will want to add some type of shock tower to cowl bracing for the extra weight. Is it worth the extra torque and terrible mileage? I would say no...just add a turbo or SC to get both those things without as much extra weight and fewer fitment problems. I would sell that 428 to someone restoring a big block car at a good profit.
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post #6 of 24 (permalink) Old 07-12-2019, 03:38 PM
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Well, the 1968 GT500 had a 428.


I think it depends on what you want to do with your '68 fastback. Working on one big block Mustang is a challenge. Working on two big block Mustangs sounds like stabbing myself in the eye. If I simply wanted more power, I would install a stroked 351 Windsor with Edelbrock Cleveland heads. Less weight. More room. PLENTY of power!

Currently working on a 1970 Mach 1 project. See it here: http://forums.vintage-mustang.com/vi...ode-build.html
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post #7 of 24 (permalink) Old 07-12-2019, 03:39 PM Thread Starter
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Quote:
Originally Posted by Mike the old grump View Post
If I understand this correctly,



You bought a 69 that the PO pulled the 428 and C6 out of to "preserve them". You got the 428 and C6 with the car.


You also have a 68 with a crate motor.


You are considering putting the original numbers matching 428 from the '69 in the '68?


If you have a hankering for a big block I would put it in the 69 and keep it together. I would consider the motor that is currently in the '69 as the spare not the 428.


Just my $.02
Sorry I should have been clearer, no the previous owner put the original motor and trans back in the car before selling it so it leaves me with the spare 428 he had built, the original numbers matching will now stay in the 69 where it belongs
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post #8 of 24 (permalink) Old 07-12-2019, 04:08 PM
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Quote:
Originally Posted by Cobraguy1 View Post
Sorry I should have been clearer, no the previous owner put the original motor and trans back in the car before selling it so it leaves me with the spare 428 he had built, the original numbers matching will now stay in the 69 where it belongs

Ahhh We'll in that case the answer is simple.


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post #9 of 24 (permalink) Old 07-12-2019, 05:27 PM
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I had a friend that took the big block out of his '68 for a small block for better handling. That 428 and trans are heavy.
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post #10 of 24 (permalink) Old 07-12-2019, 06:11 PM
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Quote:
Originally Posted by Fishfreq View Post
I had a friend that took the big block out of his '68 for a small block for better handling. That 428 and trans are heavy.
Yes they are. Small blocks (with exception) don’t usually generate that ‘whoa’response from people when you crack the hood, big blocks do because it oooks like you need a sledgehammer and crowbar to get it in there.
The OP, you have a couple nice rides. I don’t think I’d take the small block out if it’s running well. And I’m all about an FE in just about anything.....
Sure would be cool stuck in a 66 Falcon wagon and made to look factory, but that’s me.
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post #11 of 24 (permalink) Old 07-12-2019, 06:17 PM
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65 2+2, 331, C4 presently apart for complete a restore
1979 Ford F150 custom, 302, C4, AC, tilt wheel, main transportation
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post #12 of 24 (permalink) Old 07-12-2019, 06:18 PM
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Sounds like its time to buy a car that needs just an engine

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post #13 of 24 (permalink) Old 07-12-2019, 06:24 PM
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Sounds like its time to buy a car that needs just an engine

Sometimes that can take a while. I have a (Ewwww Chevy!) Feb '66 427 block and heads in the garage that have been waiting for the right March-July engineless corvette for about 20 years, Someday I'll find it!
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post #14 of 24 (permalink) Old 07-12-2019, 07:33 PM Thread Starter
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Quote:
Originally Posted by Mike the old grump View Post
Quote:
Originally Posted by Cobraguy1 View Post
Sorry I should have been clearer, no the previous owner put the original motor and trans back in the car before selling it so it leaves me with the spare 428 he had built, the original numbers matching will now stay in the 69 where it belongs

Ahhh We'll in that case the answer is simple.


https://www.factoryfive.com/roadster/
Have one of those, been thinking of that as an option as well, it’s also has a 302.
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and I've always said 'The next one.' - Carroll Shelby
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post #15 of 24 (permalink) Old 07-12-2019, 07:53 PM
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I speak from personal experience here.


Do it .
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1969 Convertible field find (450hp spaghetti noodle)
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