Help decoding my 58 corvette engine

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Oct 31, 2016 | 09:24 AM

Bman36

Thread Starter

5th Gear

Joined: Oct 2016

Posts: 5

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From: Avon In

Help decoding my 58 corvette engine

I need help decoding a 1958 corvette engine T0716HN. The engine also has a Chevrolet Tonawanda the number 1 team placard on valve cover.

Oct 31, 2016 | 09:35 AM

66jack

Team Owner

Joined: May 2006

Posts: 37,649

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From: CA

I used this decoder and these are the results...

http://www.thecamaro.com/Decoding/Ch...inedecoder.php

1965

Corvette

327cid, 4Spd. Trans, FI, TI.

375hp

HN
1968

Chevrolet

327cid, 4BC, Reg. Fuel and Powerglide.

250hp

HN
1969

Chevrolet

350cid, 3Spd. Auto trans. TH350.

300hp

HN

Last edited by 66jack; Oct 31, 2016 at 09:36 AM.

Oct 31, 2016 | 11:28 AM

John BX NY

Drifting

Joined: Dec 2006

Posts: 1,945

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From: Bronx New York

Whatever it is it's been there a long time and looks very old school. It's awesome and I wouldn't change a thing !!

Oct 31, 2016 | 12:13 PM

AZDoug

Race Director

Joined: Oct 2005

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From: Camp Verde AZ

C1 of Year Finalist (performance mods) 2019

2017 C1 of Year Finalist

Quote:

Originally Posted by John BX NY

Whatever it is it's been there a long time and looks very old school. It's awesome and I wouldn't change a thing !!

I would probably wash the dirt off.

Doug

Last edited by AZDoug; Oct 31, 2016 at 12:13 PM.

Oct 31, 2016 | 01:44 PM

Bman36

Thread Starter

5th Gear

Joined: Oct 2016

Posts: 5

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From: Avon In

Just got the car 5 days ago. Needs a good bath.

Oct 31, 2016 | 05:11 PM

Rumblegutz

Burning Brakes

Joined: Nov 2004

Posts: 1,076

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From: Ontario

The T in the build stamp indicates the block is a Tonawanda NY built engine so we know it didn't start it's working career in a Corvette.

I can see a partial casting number of the intake manifold. It appears to be 391980_. This 3919 sequence indicates a 1968 time frame. If the carb is a 4bbl I am guessing the casting number is 3919803, which is a 1968 only intake used on all V8 body lines. If the casting number is 3919801 then it is a 2bbl intake used only in 1968 primarily on 307s and '68 Camaro 327s.

Once again a block casting number and date would help clear up the identity of this mystery engine.

Nov 1, 2016 | 12:47 PM

AZDoug

Race Director

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From: Camp Verde AZ

C1 of Year Finalist (performance mods) 2019

2017 C1 of Year Finalist

I would also do something about that rubber fuel line to the carb, RFN.

If you can't replace it with a steel line, at least get some new SAE30 R9 fuel injection rubber hose and replace it with that before that old brittle stuff starts spraying gas and you get a fire.

Doug

Nov 1, 2016 | 08:49 PM

Bman36

Thread Starter

5th Gear

Joined: Oct 2016

Posts: 5

Likes: 2

From: Avon In

18J317642

Last edited by Bman36; Nov 1, 2016 at 08:54 PM.

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Nov 2, 2016 | 07:54 AM

GUSTO14

Le Mans Master

Joined: Sep 2003

Posts: 8,812

Likes: 2,029

From: eastern NC

Looking more like a 1968, 327 (?), full sized Chevy or Chevy II with powerglide...

By the way, welcome to the Corvette Forum

I believe you will soon find it to be one of the most valuable tools in your tool box!

Good luck... GUSTO

Last edited by GUSTO14; Nov 2, 2016 at 07:57 AM.

Nov 2, 2016 | 08:58 AM

#10

emccomas

Team Owner

Joined: May 2005

Posts: 31,497

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From: Huntsville AL

That stamp looks like 18J317042.

If so, it makes this a 1968 engine installed in a car at the Janesville, WI assembly plant.

Janesville made full size passenger cars, so you engine is a 1968 327, 250hp, powerglide, 4 bbl carb, installed in a full size passenger car