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Old 03-19-2014, 11:14 PM   #1
desertdogg
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How do I find date code on 5.3 liter engine ?

Ok I have been going crazy trying to determine the date code on this engine I just got Does anyone know how to determine this ? any help would be awesome !
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Old 03-20-2014, 08:06 AM   #2
pbr
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Re: How do I find date code on 5.3 liter engine ?

Just above the water pump on the right side should be a code. The letters are the month A=january L=december the next two digits are the day it was cast the last would be the year A156 = Jan 15th 2006
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Old 03-20-2014, 10:05 AM   #3
desertdogg
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Re: How do I find date code on 5.3 liter engine ?

Thanks pbr...I got F100 June 2000 ??
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Old 09-24-2024, 10:16 PM   #4
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Re: How do I find date code on 5.3 liter engine ?

Not trying to revive an old thread, but the months are as follows:

A = Jan
B = Feb
C = Mar
D = Apr
E = May
F = Jun
G = Jul
H = Aug
J = Sep
K = Oct
L = Nov
M = Dec

Source: I've got a "M066" date coded LQ4 block. It breaks down to be cast on Dec 6, 2006.
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