Engine block Number on my 59 vette is F 72 ICU...what is this?

Want to know what the block number of F 72 ICU stands for on my 1959 vette?

Comments for Engine block Number on my 59 vette is F 72 ICU...what is this?

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Jun 17, 2016
Your 1959 engine block assembly date
by: George


Your 1959 corvette with engine ass. Date of F72ICU.

F - Flint (city manufactured)
7 - July
21 - day in July.
CU - means it is a 2 x4 carb high lift cam with Manual transmission

You will want to check the "birthdate" of your car to insure the engine is before it, and also the casting on the engine same.
Also, check for block cast number (59 should be 3756519 (unless it is a very early car) and date.


Jan 15, 2013
block #
by: Don Herstine

It is probably a manufacture #. That is my best guess.

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