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Old 04-03-2018, 09:38 AM   #1
ChadW
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SBC 327 history

I got a sbc 327 with a project i bought and was told it was a factory 300hp 1964 out of the Tonawanda NY plant. I got some numbers off the rear of the block (near where the tranny mounts up. Can i verify what i was told by any of these numbers?

3858180

D3064

6T

C0NV1
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Old 04-03-2018, 10:58 AM   #2
geezer#99
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Re: SBC 327 history

Your casting number 3858180 shows it’s a 64-67 327.

http://www.mortec.com/castnum.htm

You’ll need the suffix code off the pad in front of the passenger side head to narrow it down.
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Old 04-03-2018, 08:54 PM   #3
ChadW
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Re: SBC 327 history

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Originally Posted by geezer#99 View Post
Your casting number 3858180 shows it’s a 64-67 327.

http://www.mortec.com/castnum.htm

You’ll need the suffix code off the pad in front of the passenger side head to narrow it down.

Its T05I9S. And I can’t find anything with a 9S suffix code...I was told originally this is a 327/300 motor that was built in the Tonawanda plant when the Flint plant went on strike in 64 and its out of an impala...unless I’m looking in the wrong places, I can’t find any suffix codes close to what I have...of course...lol

Last edited by ChadW; 04-03-2018 at 09:36 PM.
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Old 04-03-2018, 09:34 PM   #4
geezer#99
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Re: SBC 327 history

T——Tonawanda
0519—May 19
S——look here.
It says 1962 327.
Look a little closer to see if there’s another letter after the ‘S’.
Sometimes all the info from different sources doesn’t match.

http://www.nastyz28.com/gm-chevy-cod...s-suffix-6.php
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Old 04-03-2018, 09:37 PM   #5
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Re: SBC 327 history

NastyZ28 is my go to for engine and parts decoding. Mortec is just too broad, where NastyZ28 has a bit more info.

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Old 04-03-2018, 09:42 PM   #6
ChadW
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Re: SBC 327 history

Quote:
Originally Posted by geezer#99 View Post
T——Tonawanda
0519—May 19
S——look here.
It says 1962 327.
Look a little closer to see if there’s another letter after the ‘S’.
Sometimes all the info from different sources doesn’t match.

http://www.nastyz28.com/gm-chevy-cod...s-suffix-6.php

But the casting number 3858180 says 64-67 327....??

Did they sometimes use an i instead of a 1 as its clearly an upper case I as well
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Old 04-03-2018, 09:53 PM   #7
ChadW
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Re: SBC 327 history

Quote:
Originally Posted by geezer#99 View Post
T——Tonawanda
0519—May 19
S——look here.
It says 1962 327.
Look a little closer to see if there’s another letter after the ‘S’.
Sometimes all the info from different sources doesn’t match.

http://www.nastyz28.com/gm-chevy-cod...s-suffix-6.php

But the casting number 3858180 says 64-67 327....??
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Old 04-03-2018, 09:58 PM   #8
YoungPup1977
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Re: SBC 327 history

180 casting..... with a casting date of april 30 1964....

T0519S = may 19 1964

so with the suffix code of S.....(you need another letter). "SL" maybe.....

Clean the area on the block real good where you got T0519S and take a pic of it and post it. Thanks.
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Old 04-03-2018, 10:06 PM   #9
ChadW
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Re: SBC 327 history

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Originally Posted by YoungPup1977 View Post
180 casting..... with a casting date of april 30 1964....

T0519S = may 19 1964

so with the suffix code of S.....(you need another letter). "SL" maybe.....

Clean the area on the block real good where you got T0519S and take a pic of it and post it. Thanks.

Click link to see pic... I read it as T05I9S


dropbox.com/s/11zv38iknnx4ujn/20180403_194001.jpg?dl=0
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Old 04-03-2018, 10:12 PM   #10
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Re: SBC 327 history

Quote:
Originally Posted by ChadW View Post
Click link to see pic... I read it as T05I9S


dropbox.com/s/11zv38iknnx4ujn/20180403_194001.jpg?dl=0
I can not see it....post a pic without the dropbox link thanks
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Old 04-03-2018, 10:16 PM   #11
ChadW
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Re: SBC 327 history

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Originally Posted by YoungPup1977 View Post
I can not see it....post a pic without the dropbox link thanks
Only way I can tonight...click link then choose continue to website and it will open pic with no need to install dropbox
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Old 04-03-2018, 10:24 PM   #12
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Re: SBC 327 history

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Old 04-03-2018, 10:25 PM   #13
ChadW
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Re: SBC 327 history

Quote:
Originally Posted by YoungPup1977 View Post
I can not see it....post a pic without the dropbox link thanks
Only way I can tonight...click link then choose continue to website and it will open pic with no need to install dropbox
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Old 04-03-2018, 10:25 PM   #14
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Re: SBC 327 history

I will look tomorrow for another pic, take it as close to the letters as possible without distorting the letters........thanks.

Can you take all the orange paint off before the pic....maybe a letter is hiding under all that chevy orange...Thanks again.
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Old 04-04-2018, 01:50 PM   #15
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Re: SBC 327 history

the block casting date D3064 (4-30-64) is fine for a may 19 build. Not having the org heads and intake it's just a non stock engine.
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Old 04-04-2018, 05:08 PM   #16
YoungPup1977
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Re: SBC 327 history

Quote:
Originally Posted by ChadW View Post
I got a sbc 327 with a project i bought and was told it was a factory 300hp 1964 out of the Tonawanda NY plant. I got some numbers off the rear of the block (near where the tranny mounts up. Can i verify what i was told by any of these numbers?

3858180

D3064

6T

C0NV1
Going back to your very first post:
with the information you are providing, there is NO WAY to agree with the 300HP 327 information you were told....GOOD LUCK !!!!!!! Did your camera break just after you took the first pic....

Take the paint off and take a pic and post it.....

Last edited by YoungPup1977; 04-07-2018 at 06:52 PM.
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