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Old Feb 18, 2018 | 12:23 PM
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Need help deciphering stamp code on 1958 739 block stamp is as follows- FI23P. Thanks for any help
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Feb 21, 2018, 01:58 AM
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OK, here is a pdf of the latest version of the Lime Book.

Enjoy...
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LIME_BOOK_2018.pdf (1,020.0 KB, 363 views)
Old Feb 18, 2018 | 03:22 PM
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Originally Posted by 1smokey joe
Need help deciphering stamp code on 1958 739 block stamp is as follows- FI23P. Thanks for any help
1958 Flint 283/160hp 2-barrel manual transmission truck engine, built January 23.

Last edited by JohnZ; Feb 18, 2018 at 03:23 PM.
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Old Feb 18, 2018 | 04:30 PM
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​​​​​​​it also has steel crank hardened and cross drilled with twin tower heads. To hear its a 22bbl truck motor is to say the least disappointing. Can you tell me where that info came from?QUOTE=JohnZ;1596619345]1958 Flint 283/160hp 2-barrel manual transmission truck engine, built January 23. [/QUOTE]
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Old Feb 19, 2018 | 11:23 AM
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Originally Posted by 1smokey joe
​​​​​​​it also has steel crank hardened and cross drilled with twin tower heads. To hear its a 22bbl truck motor is to say the least disappointing. Can you tell me where that info came from?QUOTE=JohnZ;1596619345]1958 Flint 283/160hp 2-barrel manual transmission truck engine, built January 23.
[/QUOTE]

From the "Lime Book", the most authoritative source I'm aware of for decoding Chevrolet V-8 identification markings.
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Old Feb 19, 2018 | 02:10 PM
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From the "Lime Book", the most authoritative source I'm aware of for decoding Chevrolet V-8 identification markings. [/QUOTE]

John, what is this Lime Book you speak of?

GUSTO
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Old Feb 19, 2018 | 02:18 PM
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NCRS book -
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Old Feb 19, 2018 | 05:03 PM
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Originally Posted by GUSTO14
From the "Lime Book", the most authoritative source I'm aware of for decoding Chevrolet V-8 identification markings.
John, what is this Lime Book you speak of?

GUSTO[/QUOTE]


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Old Feb 19, 2018 | 05:09 PM
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Thanks Keith...

I guess the next question is, where can you get a copy?

GUSTO

Ah... I see said the blind man, to the deaf man...
https://www.ncrs.org/shop/index.php?...roducts_id=383

Last edited by GUSTO14; Feb 19, 2018 at 05:12 PM.
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Old Feb 19, 2018 | 05:17 PM
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Originally Posted by GUSTO14
Thanks Keith...

I guess the next question is, where can you get a copy?

GUSTO

Ah... I see said the blind man, to the deaf man...
https://www.ncrs.org/shop/index.php?...roducts_id=383
that was written by our own member jv04. you can try and PM him as well
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Old Feb 21, 2018 | 12:29 AM
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The Lime Book, and the associated Lemon Book, have both been out of print for a while.

I keep telling myself that I will resume printing one day, but that day never seems to come.

Stay tuned...I have another idea.
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Old Feb 21, 2018 | 01:58 AM
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OK, here is a pdf of the latest version of the Lime Book.

Enjoy...
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LIME_BOOK_2018.pdf (1,020.0 KB, 363 views)
Old Feb 21, 2018 | 11:18 AM
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Wow. Darned nice of you to post that PDF for all the see!
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Old Feb 21, 2018 | 01:39 PM
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Originally Posted by Easy Rhino
Wow. Darned nice of you to post that PDF for all the see!
Ditto!!!
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Old Feb 21, 2018 | 01:57 PM
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Originally Posted by jv04
OK, here is a pdf of the latest version of the Lime Book.

Enjoy...
Thank you very much
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Old Feb 21, 2018 | 02:26 PM
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Entire engine code is 3737739, date code is A178, has a steel nitrided and crossdrilled crank #3735236 , and x58 twin tower heads. I can't believe it started life as a 2 bbl
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Old Feb 21, 2018 | 03:11 PM
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Originally Posted by 1smokey joe
Entire engine code is 3737739, date code is A178, has a steel nitrided and crossdrilled crank #3735236 , and x58 twin tower heads. I can't believe it started life as a 2 bbl
That engine got those heavy duty parts because it was a big truck engine. Not your basic pickup truck engine.
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Old Feb 21, 2018 | 03:34 PM
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They didn't use x58 heads on 2 bbl vehicles and I still can't find a "P" suffix.also the 739 code used on trucks is not the 3737739 code. So much for just using last three digits.
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Old Feb 21, 2018 | 03:37 PM
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A good friend bought a nice '59 over 20 years ago. It had a 400 small block in it at the time and ran extremely well. Shortly after buying it, he decided to remove the 400 and replace it with a correct 283. It took him over 6 months to find a 283 block that was suitable for rebuilding even back then. He actually bought 3 blocks before finding one that was worth rebuilding.

I personally would much prefer a 283 from a truck suitable for rebuilding over one that needs major machine work or even resleeving. Needless to say, good 283's are becoming very scarce.

Good luck... GUSTO
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Old Feb 21, 2018 | 03:41 PM
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Originally Posted by 1smokey joe
Entire engine code is 3737739, date code is A178, has a steel nitrided and crossdrilled crank #3735236 , and x58 twin tower heads. I can't believe it started life as a 2 bbl
I think all small block crankshafts of the era were forged and received one of two surface hardening treatments. Nitride or tuftried.
Are you sure the mains are cross drilled? Is the hole straight through each main journal?
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Old Feb 21, 2018 | 04:21 PM
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No, not straight through and as i recall not every main. Curiouser and Curiouser? And again on the suffix "P", I can't find a p code by itself and they don't occur till years later.
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