351M Casting Number?
Thread Starter
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Fleet Mechanic
Joined: Feb 2001
Posts: 1,290
Likes: 15
From: Toronto, Canada
351M Casting Number?
Hey guys, hows it going?
I am going home from university to visit my truck and get some home cooked food this weekend.
We recently had the M rebuilt (only has 600 km on it so far), and had to get a new block as ours was cracked.
My question is, where do I find the casting number on the block?
(the engine is installed and completed)
Or is it impossible without taking something apart?
I want to make sure that our rebuilder didn't get a Michigan block made before 3/77 that were prone to cracking.
Thanks!
1978 F250 Ranger 4x4 - 351M
I am going home from university to visit my truck and get some home cooked food this weekend.
We recently had the M rebuilt (only has 600 km on it so far), and had to get a new block as ours was cracked.
My question is, where do I find the casting number on the block?
(the engine is installed and completed)
Or is it impossible without taking something apart?
I want to make sure that our rebuilder didn't get a Michigan block made before 3/77 that were prone to cracking.
Thanks!
1978 F250 Ranger 4x4 - 351M
Thread Starter
|
Fleet Mechanic
Joined: Feb 2001
Posts: 1,290
Likes: 15
From: Toronto, Canada
351M Casting Number?
Now that I think of it, would a Southern Ontario Canada engine be built in the Michigan plant anyway? If not, the builder wouldn't be able to get a bad block, assuming he found a block in our area.
HELP!
Later!
Matt
1978 F250 Ranger 4x4 - 351M
HELP!
Later!
Matt
1978 F250 Ranger 4x4 - 351M
Posting Guru
Joined: Aug 2000
Posts: 2,416
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From: PacNW
351M Casting Number?
[font size="1" color="#FF0000"]LAST EDITED ON 14-Mar-01 AT 01:45 PM (EST)[/font][p]Casting # (ex. D7TE-A3B) and date (ex. 6D21) are below the right rear bank of cylinders. Casting plant code is next to the oil pressure sending unit on the rear of the motor. CF is for Cleveland Foundry. MCC is for Michigan Casting Center.
Check the plant code first. If it's CF then don't sweat it. They didn't have any problems with Cleveland blocks. If it's a MCC Michigan block then go ahead and check the date code. You're looking for something later than 7C01 IOW 7C02, 7D01, etc. If it's like 7B14 or 6D21 then you may have a problem but remember, these blocks are already 25-26 years old. If they were going to crack then they probably already have.
I don't think they cast any 335 blocks in Canada so you've probably got either a Cleveland or Michigan block.
Check the plant code first. If it's CF then don't sweat it. They didn't have any problems with Cleveland blocks. If it's a MCC Michigan block then go ahead and check the date code. You're looking for something later than 7C01 IOW 7C02, 7D01, etc. If it's like 7B14 or 6D21 then you may have a problem but remember, these blocks are already 25-26 years old. If they were going to crack then they probably already have.
I don't think they cast any 335 blocks in Canada so you've probably got either a Cleveland or Michigan block.
Posting Guru
Joined: Aug 2000
Posts: 2,416
Likes: 4
From: PacNW
351M Casting Number?
Yep, the plant casting code is pretty tricky since it's up in the back of the motor and that area tends to collect a lot of oil and dirt but since yours is clean it should be fairly easy to read. If you have a "mirror on a stick" it's a little easier. You should be able to crawl under the truck with a flashlight and look at the casting # and date code.
Posting Guru
Joined: Aug 2000
Posts: 2,416
Likes: 4
From: PacNW
351M Casting Number?
No sweat....glad to help. In the future tho' you might want to put M block specific questions in the 351M/400 forum. There's several guys over there who know a lot about the M series who may not look in here.
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Thread Starter
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Fleet Mechanic
Joined: Feb 2001
Posts: 1,290
Likes: 15
From: Toronto, Canada
351M Casting Number?
Couldn't find the plant code...must check harder later!
But the casting number started with D1AE
Does this mean that it is an '81 block?
Matt
1978 F250 Ranger 4x4 - 351M
But the casting number started with D1AE
Does this mean that it is an '81 block?
Matt
1978 F250 Ranger 4x4 - 351M
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