ok so I'm looking to buy a 1967 mustang gt 390 car.

The seller has said that to his knowledge the motor was a 427...

looking at the picture.... the intake read C7AE-9425-E which i believe was installed on a 390 and/or a mercury 428-4v in 1967


any help would be great

thank you

 

According to this:
http://www.mustangtek.com/FordIntake.html

It's a 428. Might could be a 390 with an intake swap. Only way to really know is to get the block stamping, I'd guess, and check it against this, or another similar chart:
http://www.mustangtek.com/block/Block.html

Good luck!

 

thanks
how did you determine its a 428?

 

Those valve covers look awful small for a 4V.

 

I thought in 1967 a 4v Ford motor was describing the carburetor.

 

4V = 4 barrel.

 

Oh... right.

 

Yes 4v is for a 4 barrel carb

Ford did not offer a 4 barrel 428 in a mustang only Shelby's got the 428s

I know mercury cars had the 428 with 4 barrel installed from factory that is why I though this could be.

Below the driver side head there is a stamp 55. And 352 on the block


This confirms the block is a fe. Just did not know what the 55 is ?

Any thoughts?

 

Hoss429 on here is very familiar with these engines. Maybe he will chime in soon.

 

Only really goin' by the list. That and the fact that the 427 is a rarified engine compared to 390s and 428s. The 427 was a highly special engine, not many survive and they are *really* expensive to play with.

The 428 was cheaper to build for Ford, so that's how they wound up in so many things.

It looks like, if the intake is right, IF it's even a 428, as it could be an intake swap on a 390... the 428 was dropped in at some point in this car's life, as otherwise, it'd be a 390, as nothing else was offered in '67, except the 289 block and the I6 200. Unless somewhere in the past an actual 427 was put in it.

Check the fifth letter of the vin. If it's a real 427 car, that letter will be either an R, Q, or W... but it won't be, as again, it wasn't offered in a '67. It is likely a M, S, Y, or Z, and most likely the Z, as that's what's supposed to be, if it's a real 390 car.

Here ya go:
http://www.oldride.com/library/1967_ford_mustang.html

http://www.fordification.com/tech/ca...rs-FEblock.htm

Even the casting numbers aren't gurarnteed to work, though. You'd actually have to check the stroke, and even THEN it could be the 427/390 have the same stroke, so you'd be down to getting the bore... Or checking the main caps... all the trickery that went into the 427 would be where you'd actually know if it is or not.

Is all so complicated.

Anyway, hope that helps some.

 

The only mid 60's+ version of the 427 was the Cammer right? SOHC with huge heads.



http://www.supermotors.net/articles/...sue01-a2-1.php

 

Nah, they had a 427 as early as '63. A lot of them had steel cranks and solid lifters. Think Thunderbolt. Same stroke as a 390, but a big bore. Think GT40 Le Mans motor, 427 Shelby Cobra motor, etc.
http://en.wikipedia.org/wiki/Ford_FE_engine#427

 

A real 390 would be an S code....not a Z code

 

Huh. Chart's wrong? Odd. Ok, then S. Backwards Z. I'm still right in the Obi-Wan sort of way.

Yeah. That's it.

/I did go look at it again. That's... really strange.
//Well, there's this one: http://iml.jou.ufl.edu/projects/students/Blommel/67.htm, and it's 'right', so someone needs to tell that other page to fix it.

 

all 427 engines had a unique bore size of 4.23 inches and 99 % of them had solid lifters .. pull a valve cover and look for adjustable rocker arms ..a 427 engine would be worth near more than the whole car ....actually Mgreene from the rocket city mustang club section could settle this ....if you can look at the bottom of the engine near the oil pan then look for these three extra bolts in the side of the block .. all 427 engines were cross bolted 4 bolt main engines ...

 

I'm no V8 guy, but didn't the valve cover on the FE overlap the intake by a lot? If his does, rules out 427, then need to determine 428 or 390.