T1I08TLM - Can you decode this!?

[Hardesty454]

Ok, game time people. Who can decode this block I.D.

T1I08TLM


GO!

[chevyman91]

T I believe is tonawanda n.y. which is the plant it is built as for the rest I have no clue
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[Hardesty454]

Good start!
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[chevyman91]

1969 Corvette 427 390 Mt HP that's what I found on the suffix code
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[chevyman91]

I'm thinking assembly date of January 8, of 1969 not 100% on that though
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[Hardesty454]

Where did you find the code for this answer!?
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[chevyman91]

I looked up the suffix code (lm) and the rest I just know took awhile to come back to me
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[chevyman91]

Here's a list of suffix codes http://www.nastyz28.com/gm-chevy-cod...-suffix-14.php
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[Hardesty454]

So the suffix code isn't "tlm". Just lm?
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[chevyman91]

That I'm not sure about didn't even see the t there
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[chevyman91]

Here's the right one sorry bout that TLM 1972 Truck 402 210 400 L-47 AR, 10, 20
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[chevyman91]

http://www.nastyz28.com/gm-chevy-cod...-suffix-15.php
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[Hardesty454]

Arrg. I see that now. You had me excited for a second. This is my engine in my 71. I was told it was a 454. Decided to check it out myself. Guess its a bit smaller than I thought.


Still a Chevy!
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[SS Tim]

Tonawanda, November 08th, 72 Truck L47 402/210 C10-20 w/AR BBC or maybe a 76-77 Truck LM4 400/175 SBC.

Without a casting number and date code this is kind of moot and a waste of time.

[chevyman91]

Ya it is still a really good engine though. I haven't messed with the BBC that much but I believe you can stroke the 402 using a 454 crank Nanking a 440 c.I.
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[Hardesty454]

Well someone's a negative nancy.


How about I grab the serial number for ya.
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[chevyman91]

Ss Tim not arguing with you but why would it be november
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[bruceman1968]

Originally Posted by chevyman91

Ss Tim not arguing with you but why would it be november
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Chevyman91, The number given was T1I08TLM,
The I is incorrect, this is easy to tell cause there are no letters that would be in that spot, only numbers. So either it's a miss stamp or a miss read. Either way the most likely is a 1 misread as a I. So the code becomes T1108TLM
T= Towanda
11= November
08= 8th day of Nov.
TLM= 3 different motors depending on the year. With casting number 3999290 it narrows down to one motor, 72 Truck L47 402/210 C10-20 w/AR BBC (just like Tim said) Also it should have a automatic transmission. (M49)
It would be nice to see the date code, as a double check on the year. (I also have a 71, 402 listed)

[bruceman1968]

Just did some more research, 3999290 could be 68-72 402/396, so we need the date code to see if you have the 71, 402 310hp or the 72 402 210hp.
The 71 motor could have a auto or manual trans. The 72 motor was a auto. I'm betting on the 71 as the 72 was a prob. a car motor, although some references list it as a truck motor.
Check the date code for a definitive answer. I'm betting the date code starts with a K and ends with a 1. Should be 2 numbers in-between.

[Hardesty454]

Serial: 8999280
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[Hardesty454]

I lied!

3999290...
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[chevyman91]

Bruceman1968 thanks I figured it was miss read just guessed the month though thank you
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[Hardesty454]

Could swear that's an I.


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[bruceman1968]

Originally Posted by Hardesty454

Could swear that's an I.

That is a I, it's a miss stamp, should be a 1. On the bright side, no need to get your eyes checked. If you have the protect-o-plate, that code will be on it. T1108TLM. Did you get the date code? It is a cast into the block.

[Hardesty454]

Where is the date code?
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