Davexd

Hi Guys i'm trying to identify what engine and heads i have in my 351, these are the engine numbers i can find JG71pt 81948k which i have worked out is from a 1974 Ford ltd, but the other numbers i have no idea the numbers are listed below, pleas help.

The block D AE-LA
3j7
and it has an R stamped below the above numbers

Below this is a strange circular plate with the numbers 1, 3, 5, 7, 9 all written around the circle.

On the heads all i can find is a raised 3 on the end of the head and a stamped number 1 half way along the head.

Any help with these numbers would be very helpfull, thanks

bascobunch

not sure how to desribe it but the cleveland in ltd's were a standard engine that could be made to run like a scalded ape. they were inch wider on the intake manifold than the 302 and the 351 winsor hope this helps

Bossman_351

Are you trying to determine WHICH 351C or IF it is a 351C?

One of the easiest ways on a stock engine to determine IF it's a 351C would be to look at the firing order and the block/water situation.

The Firing Order of the 351C is: 1-3-7-2-6-5-4-8. The #1 plug in the 351C distributor is normally located at the 7 to 8 o'clock
position as viewed from above/rear.

Here are some other Firing Order's.....

• Ford (5.0L HO, 351W, 351M, 351C, 400): Counter-clockwise 1-3-7-2-6-5-4-8
• Ford: Counter-clockwise 1-5-4-2-6-3-7-8

The Cleveland will NOT have a water jacket in the intake manifold. IE the hose going to your heater core will come from the water pump and NOT the intake manifold. I'm not sure on a 351 modified.

If you take off the heads, things become a little more obvious. The ports and valves on a 351C are quite large compared to a 351W.

I'm not near any resource material, but if you still need help I'll do some digging when I have time.

Davexd

I know it is a 351c but what i'm wanting to find out is what the other numbers mean, and how to identify what heads are on it eg. 2v or 4v, i've had a couple of guys look at it & have told me different things, one guy even told me it was a nascar block, so i'm just trying to establish what i've got.

cobra269au

Gday Dave,

It would appear that the block you have (D AE-LA 3j7) was cast on September 7, 1973. There appears to be a number missing between the D and the AE, are there any other numbers you can find? It is likely that the R indicates that you have 4V heads rather than 2V and you should be able to see either a 2 or a 4 cast into the diagonal corners of the head, visible without removing the heads from the block.

Hope this helps,
Mark

Davexd

I noticed that there is a number missing between the D & AE which i thought was odd, the only number i have found on the heads is the number 3 do i need to take the rocker covers off and look underneath?

Khyren

Sounds more like you have a 351M/400 or a 400FMX. To determine if it's a C or M, measure across the flat area in the center where the intake sits. The measurement from head bottom to head bottom should be 7 inches for a 351C and 8.5 inches for a 351M/400. Also the bellhousing pattern will be a small block pattern (approx 6-7" at top two bolts) for a 351C and a 400FMX(ultra rare engine). The big block pattern is what the 351M/400 has and is approx 8 inches at the top 2 bolts of the bell. Now for the heads. If they have a 2 cast into the corner without a dot, they are 2v non smog heads. With a dot, smog 2v. Same goes for the 4v heads. No dot, more than likely closed chamber heads. Pull the valve cover for casting verification. Should be D0ZE or D0AE. With a dot, it will be open chamber heads with massive ports.

Hope I didn't overload you with info.

gcg2503

A 1974 Aust Ford LTD will be a 351 Cleveland
The heads will be 2V heads...not 4V

tinman351

here's how to tell which Aussie heads are on your engine w/o taking them off

Ford Aussie 302C Heads - Clevelands Forever!

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