I have taken pictures of different areas of the block and of the intake manifold. Wondering if these numbers can possibly tell what block is in this truck.
The previous owner told me that the man he bought the truck from said it was and engine out of a police car something like 1965 year and that it is a 390.
The man I bought the truck from, previous owner, also mentioned that he wasn't for sure that it was not a 428. Since he said that I decided to try to figure it out if I can With Your Help!

1) passenger side front bottom of block - C6ME- (there was the Dash, but nothing after it)
2) next to engine oil filter , bottom side - 5D13
3) drive side front area of block - 19 DIF
4) intake manifold - 05AE9425
5) transfer case - 024-15-2

Thank You

 

C6ME = 1966 revision, Mercury line. This shows up on a lot of blocks starting in '66. Even though it's "Mercury", it didn't necessarily go into a Mercury. This lists the wide variety of blocks bearing a "C6ME" casting number:
https://www.erareplicas.com/427man/engine/partnums.htm

5D13
5 = 1965
D = 4th month, April
13 = 13th day
4/13/65, the date of casting.
Since Ford let the blocks sit for several months after casting, this would be right for model year 1966.

I can't read the other date code.

19 DIF = Dearborn Iron Foundry, 19 probably has a meaning but I don't know it.

C5AE9425 = again, 1965 revision, Ford engineering group. 9425 is the basic part number for an intake manifold. This revision could have been used for several model years. There could be more numbers after the 9425. Those numbers might shed a little more light on it.

Transfer case--Can't id from that number. More clues here:
https://www.fordification.com/tech/transfercase.htm


I doubt it was a Police car engine.

It appears to be the original Ford blue started for the '66 model year. A '65 block would be factory black.

Mercury valve covers..... Opens up the 410 possibility.

You can check the stroke with a wire or dowel down a plug hole as described here, along with other FE specifics:

https://www.ford-trucks.com/forums/2...questions.html

"All 352s become 390s on sale day".

"All 390s become 427s or 428s on sale day."

 

A 410 or a 428 will have a weighted flexplate so you might want to look there.

 

I took a few pictures of the engine mounts - 1 engine mount is at the front of the engine and one on each side at the very rear of the engine.

 

that just means you have front and rear mounts instead of side mounts. the only way to know for sure what engine you have is to measure the stroke.

 

What sticks out most to me is what appears to be an original cast 4V intake manifold. That intake, C5AE-9425-C (1965-66) was only used on two engines, the 352 and 390. If it is a 1965 Mercury, then it indeed came out of a police car. Both engines were available in PCs.
All 1965 T-birds with that intake were 390s, but would have the Thunderbird valve covers.
That makes it easy to determine by checking the stroke. 3.5 inches for the 352. 3.78 inched for the 390.
This of course assumes that the motor is untouched.

 

C6ME block would not be in a '65.

 

The April 1965 date seems awfully early for c6 block but who knows what Ford did back then.
Even if it's a 1966 motor, that intake manifold was only used on 352 or 390 4V motors. Again, assuming all original motor.

 

In post 2 I referenced something I read here about blocks sitting and being "seasoned" before final machine work and assembly.

That is contradicted by this post:
https://www.ford-trucks.com/forums/1...l#post21228208

That would indicate Ford got right on assembly not long after casting.

So would a '66 model year block really pop out of the casting mold 4 or 5 months before '66 MY vehicles hit the assembly line?

And yes, that intake with the '65 revision--that would make sense as the 352 and 390 were the only FEs that year other than 427s which would be using other manifolds.

OP needs to check the stroke.

 

Good Afternoon;
I finally found a site that has all the Engine Block Casting Numbers 1952-1996.

My engine block has: "C6ME-" ( C6ME- with a Dash after the C6ME, nothing after the Dash)

There are two C6ME cast numbers in the list: (with nothing after, just C6ME)

C6ME – 1966, 390 FE medium-block, 2-bolt mains
C6ME – 1966-1970, 428 FE medium-block, 2-bolt mains


So now my question is... without taking the engine apart, how would we figure out if I have the 390 or the 428 engine in this truck of mine?

I know parts could have been swapped out but:

Intake Manifold: C5AE 9425-3 , and there is the number 6E13 just above that number.

Oil Filter Deck: 5D13 = April 13, 1965

Thank You

 

measure the stroke.
390 is 4.05 bore and 3.78 stroke stroke.
428 is 4.13 bore and 3.98 stroke

 

Take off the cover on the front of the bell housing(where you get to the torque converter bolts) and then bar the engine over. Look for a weight on the flexplate. A weight means that it has the 3.98 stroke and the engine is either a 410 or a 428, no weight then it has the shorter stroke.

 

As mentioned in your other post, the C5AE-9425-C intake only gives you two engine possibilities...352 or 390. You'll need to pull a spark plug and measure the stroke with a piece of dowel.
3.5 inches is a 352
3.78 inches is a 390

 

Threads merged.

Check the stroke. Instructions are in the link in post 2 above.

 

I just learned a bunch from a YouTube vid (attached below).

Per his YouTube video along with all the other information I have gathered, this engine IS a 428FE - On the video He says the 428 engines were built from mid 1965 to mid 1974.
My engines casting date is: April 13, 1965 so that must make it one of the very first 428 engines to have been built.
The previous owner gave me the original air intake cleaner housing and distributor - the air intake cleaner housing has a Chrome top cover with the Blue base that sits on the carburetor.

I will not be removing the engine oil pan any time soon so I wont have the crank id number for a while.
I am thinking that this engine was built in spring of 1965 but was installed into a 1966 police car which would be why the engine is painted Blue, which I believe would make this a 1966 428 Interceptor Engine. The intake manifold was supposed to be Aluminum on the 428 in 1966, I'll have to try to find out if this one is aluminum or not. It also said that the 1966 428 had Solid Lifters and after that they went to hydraulic lifters for 1967.

Also, I read that in 1966 there were Both Ford and Mercury police cars built.

The 428 PI for 1966 was: 428cid/360hp/459lbs ft./10.5:1

Next time I get out to work on the truck I am going to look all over the engine Block, Heads to see what other identifying numbers I can find.
I also attached a picture of the side of this block that shows the 4 motor mount bolt holes on my engines block vs 2 motor mount bolt holes on the other engines that is in the video.

I am only able to work on the truck 2-3 times a week. I am going to drain a quart of engine oil out of the engine oil pan and then add a quart of MSO and let the engine idle for a good 15-20 minutes then drain the oil and put in fresh 10w-40 and a new Baldwin oil filter. If the engine oil gets dirty again real fast then I'll change the oil again so no clumps of sludge can get caught in an oil passage and cause problems.

I just found this bit of info on: Hemmings:
It was in that context, then, that Ford introduced the 428 on October 1, 1965, tucked snugly into the engine bay of the 1966 Galaxie 500 7-Litre, a sporty edition of the full-size Ford created specifically to showcase the new engine.

and on Wikipedia:

428 engine configurations and applications

• 4V, 10.5:1
  • 345 horsepower (257 kW) at 4600 rpm and 462 lb⋅ft (626 N⋅m) at 2800 rpm
    • 1966–1967 Ford
    • 1966–1967 Ford Thunderbird
    • 1966–1967 Mercury
    • 1966-1967 Ford 7-Litre
    • 1966-1967 Mercury S-55
  • 360 horsepower (270 kW) at 5400 rpm and 459 lb⋅ft (622 N⋅m) at 3200 rpm
    • 1966–1970 Ford Police Interceptor
    • 1966–1970 Mercury Police
    • 1969 Shelby GT500KR

Thank You for all your help!!








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