Here are a few pictures of the 1957 312 y-block we bought last week for $350.00 .



Here are the markings that I have found so far.

Driver's side head - ECZ-G

Intake - ECZ-9425-B

Block - driver's side - ECZ-6015-C

Pass side - looks like 8A followed by a V with an o inside



















I took picture of all the markings, the last picture is the intake.



Also here is a new picture of the 256 y-block in my 54 Mercury with the valve covers installed.






Jeff Leydig
Stallions Auto Interiors
Stearns, Ky. USA

Thunderbirds used a rear sump oil pan, passenger cars front sump, trucks more a tub shape than a front or rear sump.

John - "The Hoosier Hurricane"

The motor looks like it has the side breather which the thunderbird does not and it looks like the valley pan does not have the draft tube on it either. Probably not from a Thunderbird car.

  Vic Correnti

A T-bird motor will have a different harmonic balancer, a different generator location, a water pump spacer, a different thermostat housing, a tach drive distributor, and I think a couple other things. As Ted said, T-bird valve covers were installed on car engines. It doesn't mean it's a T-bird motor.

If that motor came from a T-bird, the correct T-bird parts are long gone and passenger car parts are now installed. Basically, it is no longer a T-bird motor, if it ever was one, and it's certainly not worth $1000. Not to me, anyway.


Lawrenceville, GA

That was my next question,is there any difference between a Fairlane and a Thunderbird 312?From what I've been reading it sounds like there is. It could be a Fairlane 312 dressed in thunderbird acesseries. I'll have to see if the owner  would drop the pan and look at the main caps/crankshaft. It would be better for him to know what he's selling anyway.

All 292’s and 312’s in 1957 Ford cars are classified as ‘Thunderbird’ V8’s.  This does make for some confusion as everyone wants to believe their particular engine actually came from a Thunderbird when in reality it was from a car.

Lorena, Texas (South of Waco)

I too found a 1957 Thunderbird 312 w/tranny. This engine was pulled from a 1957 Fairlane 500, but we where told that it was a transplant. This engine is complete, except for the air cleaner. It also came with the power steering pump, 12 volt genny, starter, exhaust manifolds, and distributor. Not a bad find



Here are the markings that I have found so far.

Driver's side head - ECZ-G

Intake - ECZ-9425-B

Block - driver's side - ECZ-6015-C

Pass side - looks like 8A followed by a V with an o inside



The gen. is mounted in front of the block not beside it. It also has the Thunderbird valve covers.



I got this engine and tranny for $350.00 and it runs great, but has a little smoke at start-up, will need new valve seals. I was told by a long time Ford man that this did come from a Thunderbird. I will remove the tranny today and look for the dot.



I will post pictures later to

Jeff Leydig
Stallions Auto Interiors
Stearns, Ky. USA

The photos aren't detailed enough. Also keep in mind that as noted the actual T.Bird engine had special pieces. However it could still be a 312, but not as valuable. Again.. check the crank flange, trans off for a detent with a short 5/16" dia dot. Or pull the pan and look for ECZ on bottom of the rods. If seller does not allow any of this, assume it's a 292. I'd walk away..

Paul

Wish the pictures were a little bigger... I don't think the water pump is spaced out either, the bypass hose does not look long enough. Also agree with the others, car oil pan, dip stick location, thermostat housing. Can't quite make out the timing chain cover...

BOB

Also just spotted a passenger dipstick. It's worth something, A $1000?, not to me

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