Engine Stamp Help

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Sep 1, 2014 | 04:21 PM

jgilevettes

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Burning Brakes

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From: Dallas

2022 Corvette of the Year Finalist -- Unmodified

2020 C3 of the Year Finalist - Unmodified

Engine Stamp Help

Gang.. I have a '70 with NOM... The motor in the car has the following stamp... Hoping someone can confirm what I believe it may be?

TO70IHN

Thanks for any help.

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Sep 1, 2014 | 04:28 PM

mchar

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From: Fairfield, VA

HN
I get it's a 327, '65, 68 or 69,
and possibly a F/I 375 for the '65.
I do not know how to decode the 1st digits.

Sep 1, 2014 | 04:34 PM

jgilevettes

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Burning Brakes

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From: Dallas

2022 Corvette of the Year Finalist -- Unmodified

2020 C3 of the Year Finalist - Unmodified

Quote:

Originally Posted by mchar

HN
I get it's a 327, '65, 68 or 69,
and possibly a F/I 375 for the '65.
I do not know how to decode the 1st digits.

You are matching my thoughts... I believe it to be a '68 327... The second digit of the other stamp is an 8 which leads me to believe '68...
Thanks

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Sep 2, 2014 | 02:46 PM

gungatim

Burning Brakes

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From: shelbyville West Michigan

I believe the first piece is:
T - Tonawanda
07 - July
0I - 1st
which was a Monday in 1968, so entirely possible...

Sep 2, 2014 | 02:54 PM

Mike Ward

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Both sets of numbers appear to be restamps. No Corvette small block engines were built in the Tonawanda plant.

Sep 2, 2014 | 06:33 PM

emccomas

Team Owner

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From: Huntsville AL

It is a 1968 passenger car engine. HN for 1968 is 327, 250hp, automatic in a passenger car.

Sep 2, 2014 | 06:41 PM

jgilevettes

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Burning Brakes

Joined: Mar 2014

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From: Dallas

2022 Corvette of the Year Finalist -- Unmodified

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Thanks gang... I believe this to be correct. Selling the car on the for sale section of this site at a reduced rate to make room for '15 C7

Little ticked at the corvette specialty shop I purchased from that represented it as a 350/350... BUT.. It sure does run strong