Which flywheel for T-5 Swap: I have my engine casting number

Alright so I now have my engine casting number. It is C8OE-6015A.

With this in hand along with the following post from 6Stang7. I have determined that my engine is from a 1968 Ford Fairlane. Therefore, I think I will need a 28oz 157 tooth flywheel. Can someone tell me if this is correct? Additionally and more importantly where to get a new flywheel for this application. I was planning on getting it at the local Ford dealership. Does someone have a part number that I would use? What should I expect to pay? I have looked in magazines like Jegs and all they have are performance units. I would prefer just to use a stock replacement part. Thanks everyone


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Use this handy chart to decode all of the Ford part numbers. For example a 1968 200 6 head part number: C8DZ-6049-C

The first two digits indicate the decade and the year;
A = 40's
B = 50's
C = 60's
D = 70's
E = 80's
F = 90's
G = 00's

So the first two digits indicate that it is a "C" 60's and a "8" so that tells us it is a 68 head.

The third digit designates the vehicle model line;
A = Ford full size (Galaxie)
B = Bronco (70-75)
C = Torino/Elite
D = Falcon
E = Escort
F = Pinto, Maverick, Late model Falcon
G = Early Comet (61-68), Montego, Cyclone (69-76)
H = Medium & heavy duty truck
J = Industrial
K = Edsel
L = Lincoln (58-60)
M = Mercury
O = Fairlane (62-68), Torino (69-76)
R = Capri
S = Thunderbird
T = F series or Bronco
U = Econoline van
V = Lincoln
W = Cougar
Z = Mustang

So the third digit indicates that it "D" was off a Falcon.

The fourth digit designates the engineering group;
A = Chassis
B = Body
E = Engine

Or if it's a service replacement part;
M = Ford Motorsport or FFRP
X = Original Ford racing program/Muscle Parts
Y = Lincoln-Mercury
Z = Ford

So the fourth digit indicates that it was a "Z" Ford replacement part.

The next 4 numbers (6049) indicates the Ford "group number" for a head

The last digit "C" on the end of the part number indicates that this part was in its third revision. If revised again it would turn into a "D" and so on. When they reach the end of the alphabet they started over with AA, BB and so on as shown in this "example" part number: D7BE-6090-AB.

Our example part number C8DZ-6049-C decodes as;

C8 = 68
D = Falcon
Z = Ford replacement part
6049 = Head group part number
C = 3rd revision

LMan said:

If I were you, and if you are using a 5.0 bell (I dont know your setup, so Im flying blind here), Id use a 5.0 flywheel rebalanced to 28oz so you can use a diaphragm clutch and the greater variety of clutch/pp packages avail for the later-model setup.

Click to expand...

Well I just bought a Ford Racing Clutch and Pressure plate for a 5.0 from CJ Pony Parts. I figured I could use that with any flywheel as long as it was a 28 oz imbalance with 157 teeth. Can a machine shop rebalance a flywheel from a 50 oz to a 28 oz? I thought I would be better off to start with a 28 oz.

My setup is going to be as follows:
89 T-5 from a GT
Stock Bellhousing from 89
Ford Racing Clutch/Pressure Plate
Mustang Steve Cable Clutch
Steel Throwout Bearing Retainer
Ministarter for 157 tooth (I have used this with my C4 for about a year now)

How much you guys pay to get your flywheels rebalanced?

So currently I have a flywheel from an 89 5.0. I could just go get that one rebalanced right?

So I am guessing this is what I need right. Why exactly do I need them. Are they only used on the late model flywheels? I haven't seen anyone else in their swaps mention them.

Hey guys,

So I drove around talking to some machine shops today and they told me that it would be difficult to reduce my 50 oz to a 28 oz since they do not have my crank shaft to ensure it is balanced. Are they giving me bad information.

Where can I get a new 28 oz that doesn't cost an arm and leg?