Engine Markings

Reply Subscribe

Thread Tools

Search this Thread

Jul 7, 2009 | 10:21 PM

Mary C

Thread Starter

Instructor

Joined: Dec 2008

Posts: 178

Likes: 28

From: Des Plaines Illinois

Engine Markings

Greetings,
I have been working on cleaning the engine of my 67 Coupe, and under the grease and grime I came across what looks to be a date written in yellow paint on both sides of the lower block. It looks to be either 3A14 or 314. If it is in fact a date, the date would correspond with my serial number and tank sticker. Per the previous owner the engine had never been taken out! I didn't see anything on this in a search, so I thought I would post a picture of it and get your thoughts

Thanks,
Pat

Jul 7, 2009 | 10:51 PM

wombvette

Le Mans Master

Joined: Jan 2000

Posts: 8,918

Likes: 27

From: New Hill NC

Looks like HE to me. 300HP

Jul 7, 2009 | 11:04 PM

C2Driver

Le Mans Master

Joined: Feb 2008

Posts: 7,876

Likes: 9

From: Toronto Ontario

Quote:

Originally Posted by wombvette

Looks like HE to me. 300HP

Good eye!

Things are not always as they seem!

Jul 8, 2009 | 06:56 AM

Mary C

Thread Starter

Instructor

Joined: Dec 2008

Posts: 178

Likes: 28

From: Des Plaines Illinois

It is an "HE" block but why would it be inverted and written as "3H" on the side?

Jul 8, 2009 | 07:34 AM

ratmotortom

Platinum Supporting Dealership

Joined: Aug 2004

Posts: 3,582

Likes: 13

From: St. Marys Ohio

HE was probably written on there during assembly. Block was upside down at the time it was written ! Good find. Always neat to see these markings that have survived.

__________________
Tom Hendricks tom@budschevy.com

http://www.facebook.com/pages/Buds-Chevrolet-Buick-Corvette/176730955684255?ref=hl
Corvette Specialist Since 1993
BUDS CHEVROLET
St. Marys, Ohio
800-688-2837
WEBSITE WWW.BUDSCHEVY.COM
HOURS MON-WED 7:00AM - 5:00PM
FFRIDAY AND SATURDAY BY APPT.
OFF THURSDAYS
NCRS # 23758 Miami Valley Chapter ( Ohio )
NCM Founding Member #1143
NADA Classic Car Guide Advisiory Board Member
C5/C6 Registry Corporate Member # 5
My Corvettes. 63, 71, 73, 78.

Jul 8, 2009 | 07:41 AM

Mary C

Thread Starter

Instructor

Joined: Dec 2008

Posts: 178

Likes: 28

From: Des Plaines Illinois

Now I see it! I should have turned the computer upside down!
Thanks guys.

Jul 8, 2009 | 08:24 AM

ratmotortom

Platinum Supporting Dealership

Joined: Aug 2004

Posts: 3,582

Likes: 13

From: St. Marys Ohio

Quote:

Originally Posted by Mary C

Now I see it! I should have turned the computer upside down!
Thanks guys.

Maybe your car was built on a Monday and the engine was installed upside down !

Jul 8, 2009 | 08:52 AM

stratplus

Drifting

Joined: Jul 2005

Posts: 1,615

Likes: 37

Here is the picture upside down..

Attached Images

Corvette Stories

The Best of Corvette for Corvette Enthusiasts

2027 Chevrolet Silverado 1500 First Look: Everything You NEED to Know!

Michael S. Palmer

5 Best & 5 Worst Corvette Daily Drivers

Joe Kucinski

The Headlights of Every Corvette Generation Explained

Joe Kucinski

5 Best & 5 Most Overrated Corvette Track Packages of All Time!

Joe Kucinski

Every 2027 Corvette Engine Explained

Joe Kucinski

Designer Imagines A Corvette That Looks More Like a Corvette Than the Corvette

Verdad Gallardo

10 Ugly Corvettes That We Still Kinda Love

Joe Kucinski

Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

Brett Foote

10 Things Every Corvette Owner Needs (2026 Edition)

Michael S. Palmer

8 Most "Only Corvette Owners Understand" Quirks and Problems

Pouria Savadkouei

Jul 8, 2009 | 09:21 AM

Stingray1967

Race Director

Joined: Dec 2000

Posts: 12,913

Likes: 60

From: Twin Cities, MN

Neat picture Mary, now how about a picture of the whole thing?

Jul 8, 2009 | 11:09 AM

#10

JohnZ

Team Owner

Joined: Oct 2000

Posts: 38,897

Likes: 1,927

From: Washington Michigan

Quote:

Originally Posted by Mary C

It is an "HE" block but why would it be inverted and written as "3H" on the side?

The first station on the engine assembly line at Flint V-8 (and at Tonawanda) was an air-gaging machine that precisely measured the bore diameters; the block was upside-down in that station, and the suffix code was written on the side of the block so the assemblers further down the line would know what innards (cam, crank, rod/piston assemblies, lifters, heads, etc.) that particular engine required. It also showed the pad-stamp operator which suffix gang-holder to use after the heads went on.