Did I make out...
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Senior User
Joined: Nov 2009
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From: TX
Did I make out...
..on this truck I just bought? Turns out the casting number for the 400M is Casting number is D1AE-A1C (or maybe D1AE-A10). That puts it as a '71, which if I've read right means it does not have the retarded cam, correct?
Pic:
Pic:
Moderator
Joined: Nov 2007
Posts: 22,415
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From: Denver Metro Area, CO
According to Bubba's site (M-Block 351M/400 Parts Reference) that casting
was used MY1971-1973.
The Casting ID only represents the family of the component, not the model year(s) the
component was used in.
Check out that guy's site for some useful information on these engines.
was used MY1971-1973.
The Casting ID only represents the family of the component, not the model year(s) the
component was used in.
Check out that guy's site for some useful information on these engines.
Postmaster
Joined: Aug 2001
Posts: 4,270
Likes: 5
From: Delaware
The block casting number only means that the casting is the '71 type casting. You need the date code next to the oil pressure sensor to determine when it was actually built. I believe that the '71 castings were used until at least '73, but the high compression non-retarded motors were only used in LTD sedans in '71.
What transmission is in it? If you are really lucky, it will be an FMX, and the motor will be one of those rare-as-hens-teeth 400s with a SB bell pattern.
What transmission is in it? If you are really lucky, it will be an FMX, and the motor will be one of those rare-as-hens-teeth 400s with a SB bell pattern.
Postmaster
Joined: Aug 2001
Posts: 4,270
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From: Delaware
M-Block 351M/400 Parts Reference
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Laughing Gas
Joined: Dec 2000
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From: East Texas
He (Bubbaf250) hasn't posted here in several years. Very knowledgeable in the 335 series engines. I've wondered several times what happened to him.
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He was a mod here, so I'm sure someone knows what happened.
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