Engine block # and 'LU' code
Thread Starter
Burning Brakes
Joined: Mar 1999
Posts: 927
Likes: 62
From: Lake Elmo, MN, USA MN
Engine block # and 'LU' code
I have a '65 Vette engine with a block # 3858180 and in the Black Book it has a LU code for 'limited use'.
What does 'limited use' mean?
Thanks
What does 'limited use' mean?
Thanks
Safety Car
Joined: Jun 2003
Posts: 3,596
Likes: 8
From: Grosse Ile MI
What they are saying in the Black Book, "limited use", actually means "Limited Quantity of Units.
What the NCRS says is:
"A limited number of these small block engines (3858180 block) appeared in 1965 Corvettes. Their casting origin was Tonawanda, New York; apparently shipped to the Flint, Michigan engine plant for machining and assembly. Their usage is believed to be a substitution occurring during a foundry shutdown at Saganaw, Michagan."
What the NCRS says is:
"A limited number of these small block engines (3858180 block) appeared in 1965 Corvettes. Their casting origin was Tonawanda, New York; apparently shipped to the Flint, Michigan engine plant for machining and assembly. Their usage is believed to be a substitution occurring during a foundry shutdown at Saganaw, Michagan."
Le Mans Master
Joined: Jul 2003
Posts: 6,808
Likes: 24
From: Westport CT
What they are saying in the Black Book, "limited use", actually means "Limited Quantity of Units.
What the NCRS says is:
"A limited number of these small block engines (3858180 block) appeared in 1965 Corvettes. Their casting origin was Tonawanda, New York; apparently shipped to the Flint, Michigan engine plant for machining and assembly. Their usage is believed to be a substitution occurring during a foundry shutdown at Saganaw, Michagan."
What the NCRS says is:
"A limited number of these small block engines (3858180 block) appeared in 1965 Corvettes. Their casting origin was Tonawanda, New York; apparently shipped to the Flint, Michigan engine plant for machining and assembly. Their usage is believed to be a substitution occurring during a foundry shutdown at Saganaw, Michagan."
Many are not even convinced it happened. But if you have a properly stamped pad and a good casting date that makes sense, I'd love to hear more about it
Le Mans Master
Joined: Jul 2003
Posts: 6,808
Likes: 24
From: Westport CT
looks to be a casting date code. January 3 1966 - would be a tad late for your 65.
Hopefully, you got that wrong, or it is found on some other component of your engine.
by the way, another forum member has a '180 block in his 64 (which makes that even more "rare"):
http://forums.corvetteforum.com/show....php?t=1292627
Like Brett says, try to see if your "pad" has any numbers on it (stamped). Here is a handy-dandy reference for where to find the "numbers":
Last edited by ctjackster; Jan 16, 2008 at 04:49 PM.
