My engine assembly date is stamped on a boss on the front drivers side of the block. It reads "5F4T". Can someone decipher this? Thanks, Ed
NEED DATE DECODING
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5 (1965)
F (June)
4 (4th day of the month)
T (Builders ID code)
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Thanks Ralph. Another thing about dates that I found interesting in the 4th edition was the fact that the date on the warranty tag was the scheduled build date and not nessarily the actual build date. So it is possible that my K was built days or even weeks after the date on the w.tag ?
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Quote from SPECIAL ED
So it is possible that my K was built days or even weeks after the date on the w.tag ?
Yes... BTW, the "T" code on your engine is likely the inspector's id.
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Special Ed:
The block in my car has a the stamp 5F7J, very close to your Mustang's motor. I'm curious to know how close the date on the door tags match up to my car? My car is 09T. I've been told that this date may not correctly define the true roll-off date, or production date, but I'm still curious about cars with dates close to mine. By the way my car is a Dearborn car.
Matt
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Quote from MTSDisplay More
Special Ed:
The block in my car has a the stamp 5F7J, very close to your Mustang's motor. I'm curious to know how close the date on the door tags match up to my car? My car is 09T. I've been told that this date may not correctly define the true roll-off date, or production date, but I'm still curious about cars with dates close to mine. By the way my car is a Dearborn car.
Matt
Hi Matt,
My GT fastback is a dearborn kar and has an 01T date on the tag. Spoke to Kevin Gormley yesterday. He is listed in the credits in the 4th edition. He said it is true that the tag date was just a scheduled build date. With the explosion of orders for Mustangs in 1965, it is very likely our kars were actually built days or weeks after that date so... the June 4th date on my block does not mean the engine is not original to the car.
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