Thread: Simplify 390 block ID

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So I've been looking through these threads and maybe I'm missing something but I would still like to know how to ID a 390 block thats just sitting in the garage without any accs. I know that a 64 Galaxie 390 should start with C4AE but what after that?

Maybe theres another thread on here that I missed, but I didn't see it anywhere. Thanks in advance!

Reading Casting NumbersReading Casting Numbers
Casting numbers tell when a part was ORIGINALLY designed and what car it was
ORIGINALLY designed for. This does not mean that the part was not used on other
cars. For example, casting number C8OE-9430-D is an exhaust manifold for a 428
CJ Fairlane; however, it was also used on 428 CJ Mustangs.
Example:
The breakdown of casting number C8OE-9430-D is easy using the charts below:
C = Decade of 1960
8 = Year of the decade (8th year of 1960), 1968
O = Fairlane Car line / Manufacture code
E = Engine engineering department
9430 = Basic number for an exhaust manifold
N = Design change
Casting Number Breakdown Charts
Decade of Manufacture:
A = 1940
B = 1950
C = 1960
D = 1970
E = 1980
Year of Decade
The year of the decade is determined by adding a number (0-9) to the letter of
the decade. Example: C6 would be 1966, D0 would be 1970, D1 would be 1971.
Car Line/ Manufacture Codes
A = Galaxie
D = Falcon (60-69)
F = Outside USA, Trans Am racing
G = Comet / Montego
J = Industrial
M = Mercury
O = Fairlane / Torino
P = Autolite / Motorcraft
R = Rotunda
S = Thunderbird
T = Truck
V = Lincoln (61 - current)
Z = Mustang
Engineering Departments
A = Chassis
B = Body
E = Engine
F = Engine accessories
J = Autolite (67-72)
P = Automatic transmission
R = Manual transmission
W = Axle
X = Muscle parts program
Y = Lincoln / Mercury service parts
Z = Ford service parts
Basic Number
These identify the part, such as 6090 being a cylinder head or 9430 being an
exhaust manifold.
Design Change
A Basic part is made to fit many applications. Example:
DOZZ-7528-C is a clutch bar for a 390/428
DOZZ-7528-D is a clutch bar for a 351 W
DOZZ-7529-E is a clutch bar for a 302 Boss
Reading Casting Dates
Casting dates:
Casting dates show the exact day, month and year a certain part was made or
cast. The typical casting date looks like "6M08".
Breaking down a casting date:
6 = The year of the decade. "6" for 1976.
M = The letter of the month. (December)
08 = The day of the month. (8th)
First year month codes:
ABCDEFGHIJKLM
JanFebMarAprMayJunJulAugN/ASepOctNovDec

Second year month codes:
NOPQRSTUVWXYZ
JanN/AFebMarAprMayJunJulAugSepOctNovDec

How do casting numbers appear?
Most casting numbers are stamped into the part itself, other have the number
molded on the part. Some casting numbers can be ink stamped while others are
printed on paper, which is then wraped around the part.
FE Casting Numbers
Blocks (C1AE8015C)
390 cid
C1AE-CC1AE-GC1AE-VC2AE-BC
C2AE-BEC2AE-BRC2AE-BSC2SE
C3SE-AC3AE-KYC3ME-BC3AE-AY
C4AE-DC4AE-FC5AE-AC5AE-B
C6MEC6ME-AC8AE-AC8AE-C
C8AE-ED3TE-1D3TE-ACD3TE-HA
D4TE-ACD7TE-BA

406 cid
C2AE-JC2AE-KC2AE-VC2AE-BD
C3AE-DC3AE-V

427 cid
C3AE-MC3AE-ABC3AE-ZC4AE
C4AE-AC5AE-AC5AE-EC5AE-D
C5AE-HC6AE-BC5JE-DC6JE-B
C6AE-CC6AE-DC7AE-AC7JE-A
C8AE-AC8AE-BC8AE-H

428 cid
C6AE-AC6AE-BC6AE-FC6ME
C6ME-AC7MEC7ME-AC8ME

Crankshafts
390 cid [3.78" stroke]
2UC3AE-DC4TE-6303-B
3UC3AE-EC4TZ-A
C1AEC3AE-UC4TZ-B
C1AE-AC3AZC6AE-A
C2AE-BC4AE-BC6TE-6303-C
C2AE-DC4AE-CC6TE-6303-E
C3AEC4AE-DD2TE-6303EA
C3AE-6303-EC4AE-A
C3AE-BC4AZ-A
C3AE-CC4AZ-J

406 cid [3.78" stroke]
2UC3AE-BC4AE-C
3UC3AE-CC4AE-D
C1AEC3AE-DC4AE-A
C1AE-AC3AE-EC4AZ-A
C2AE-BC3AE-UC4AZ-J
C2AE-DC3AZC4AZ-J
C3AEC4AE-BC4TZ-A
C3AE-6303-E C4TZ-B

410 cid [3.98" stroke]
1VAC8ME-AC9ZE-CIU
C6MEC9ZE-BC9ZE-DIUB

427 cid [3.78" stroke]
2UC3AE-BC4AE-C
3UC3AE-CC4AE-D
C1AEC3AE-DC4AE-A
C1AE-AC3AE-EC4AZ-A
C2AE-BC3AE-UC4AZ-J
C2AE-DC3AZC4AZ-J
C3AEC4AE-BC4TZ-A
C3AE-6303-E C4TZ-B

428 cid [3.98" stroke]
1VAC8ME-AC9ZE-CIUC2VE
C6MEC9ZE-BC9ZE-DIUBC6ME

I've read this post but if I'm understanding it correctly, the numbers taht are provided are just the ones to decide what the block belongs to, but how do you know a block is a 390 and not a 352? From what I can see a C4AE is a 64 Galaxie engine part, but there were a few of them, so where would I look to destinguish the block? I'll try the search above to, thanks

Measure the cly bore. The 390 has a 4.05 bore and the 352 a 4.00 bore. Also look at the casting numbers of the heads, intake, crank, rods etc....it's possible that all this might have been changed depending on how original the engine is suppose to be. The parts inside will give you a better idea what your looking at as cranks have different strokes and rods were different from engine to engine.The early blocks will have a two bolt motor mount and after 65 or 66 Ford used the four bolt mounts. So your 64 block should have only two bolt hole for the motor mount. Check the date code on the block also. Is this an engine you have or something your looking at? G.