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Big Six engine tag decoder... what does it mean?

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Old Jun 11, 2021 | 12:16 PM
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5th Wheeling
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From: Snoqualmie, WA
Big Six engine tag decoder... what does it mean?
Fellas,

Can anyone help decipher this 1968 F100 "Big Six" engine tag?

Nozz



 
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Old Jun 18, 2021 | 07:06 PM
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300....engine CID.
68......model year
11.......change level.
8........year of production (1968)
C........month of production (march)
133.....engine code number (300 L/D with Ford Autolite one barrel carb).
 
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Old Jun 19, 2021 | 04:09 AM
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From: Snoqualmie, WA
Originally Posted by JEFFFAFA
300....engine CID.
68......model year
11.......change level.
8........year of production (1968)
C........month of production (march)
133.....engine code number (300 L/D with Ford Autolite one barrel carb).
Thank you sir! What does “L/D” mean? Light duty?
 
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Old Jun 19, 2021 | 04:24 AM
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From: Snoqualmie, WA
Originally Posted by JEFFFAFA
300....engine CID.
68......model year
11.......change level.
8........year of production (1968)
C........month of production (march)
133.....engine code number (300 L/D with Ford Autolite one barrel carb).
Also, do you know of anywhere that could replicate this engine tag? It would make a great gift or keychain.

Nozz
 
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Old Jun 26, 2021 | 07:35 PM
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Yes, it means Light Duty. Bigger trucks got the Heavy Duty. No I don't know of anyone.
 
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Old Jan 2, 2022 | 06:20 PM
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Anyone have one for a 1967? I would love to add one to mine! Really cool!!!
 
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