C1 & C2 Corvettes General C1 Corvette & C2 Corvette Discussion, Technical Info, Performance Upgrades, Project Builds, Restorations

original engine?

Thread Tools
 
Search this Thread
 
Old Jul 26, 2017 | 09:27 PM
  #1  
lilesv's Avatar
lilesv
Thread Starter
Advanced
20 Year Member
 
Joined: Feb 2003
Posts: 95
Likes: 0
From: Stafford VA
Default original engine?

I bought a 1966 roadster in April 1972. Engine number is VII07HE - Flint engine; November 7th; 1965 327/300 m/t. This jives with the car's manufacture. It's supposedly the original engine, according to the original owner.

-BUT- NCRS says the engine code must start with an "F"

Could VII07HE be the original engine?

Appreciate any advice!
Reply
Old Jul 26, 2017 | 09:38 PM
  #2  
Mike67nv's Avatar
Mike67nv
Melting Slicks
Veteran: Army
15 Year Member
Liked
Community Favorite
 
Joined: Apr 2010
Posts: 2,142
Likes: 282
2018 C2 of Year Finalist
2015 C2 of the Year Finalist
Default

What is the engine casting number and casting date code? Is there a VIN derivative stamp on the pad?

Last edited by Mike67nv; Jul 26, 2017 at 09:52 PM.
Reply
Old Jul 26, 2017 | 10:17 PM
  #3  
ricks327's Avatar
ricks327
Race Director
20 Year Member
 
Joined: Sep 2005
Posts: 13,848
Likes: 1,868
From: Birmingham Mi
Default

I thought the stamp pad engine plant code switched to "V" in 66 but stand to be corrected. My small block 67 has a "V" code.
Reply
Old Jul 27, 2017 | 12:03 AM
  #4  
Velox's Avatar
Velox
Drifting
Supporting Lifetime
Veteran: Air Force
25 Year Member
Active Streak: 30 Days
Liked
 
Joined: Sep 1999
Posts: 1,417
Likes: 161
From: Des Moines, Iowa, USA Iowa
Default

Originally Posted by lilesv
Could VII07HE be the original engine?
No, not the original engine to a 1966 Corvette, just my opinion. Would like to see a photo of your engine pad, the VIN derivative, the actual stamping image, also block cast number and date, all this would help to identify origin as HE suffix found with other 60s small block Chevys. But for a 1966 Corvette, no, not original, not with a V engine assembly plant code. The only acceptable plant code for a 1966 Corvette small block would be F and this changed to a V for Flint Corvette small block engines in 1967
Reply
Old Jul 27, 2017 | 07:51 AM
  #5  
lilesv's Avatar
lilesv
Thread Starter
Advanced
20 Year Member
 
Joined: Feb 2003
Posts: 95
Likes: 0
From: Stafford VA
Default

Originally Posted by Mike67nv
What is the engine casting number and casting date code? Is there a VIN derivative stamp on the pad?
GM 3876476-N

GM131 A 3736505 1038

No VIN # on ID pad

Thanks!
Reply
Old Jul 27, 2017 | 08:26 AM
  #6  
65GGvert's Avatar
65GGvert
Team Owner
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Jul 2006
Posts: 22,162
Likes: 4,171
From: Kannapolis NC
Default

GM 3876476-N

That's the rear axle.
Reply
Old Jul 27, 2017 | 08:39 AM
  #7  
65GGvert's Avatar
65GGvert
Team Owner
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Jul 2006
Posts: 22,162
Likes: 4,171
From: Kannapolis NC
Default

Originally Posted by lilesv
I bought a 1966 roadster in April 1972. Engine number is VII07HE - Flint engine; November 7th; 1965 327/300 m/t. This jives with the car's manufacture. It's supposedly the original engine, according to the original owner.

-BUT- NCRS says the engine code must start with an "F"

Could VII07HE be the original engine?

Appreciate any advice!
It would be hard to explain an early 66 with a V engine code. Not sure how you know its Nov 65 from that info, but I would not be convinced by seller that it is the original engine. A Nov 65 engine would be, for example, F1107HE

Here's my theory based on wild speculation. IF that's the correct stamping for the engine, someone put a 67 300hp engine in and didn't bother to stamp the VIN. Perhaps a warranty replacement?

Last edited by 65GGvert; Jul 27, 2017 at 08:45 AM.
Reply
Old Jul 27, 2017 | 08:50 AM
  #8  
lilesv's Avatar
lilesv
Thread Starter
Advanced
20 Year Member
 
Joined: Feb 2003
Posts: 95
Likes: 0
From: Stafford VA
Default

Originally Posted by Velox
Would like to see a photo of your engine pad, the VIN derivative, the actual stamping image, also block cast number and date, all this would help to identify origin as HE suffix found with other 60s small block Chevys.
Here's one, more to come.

Thanks!
Attached Images  
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

 Michael S. Palmer
story-1

Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

 Joe Kucinski
story-2

150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

 Joe Kucinski
story-3

8 Coolest Corvette Pace Cars (and Replicas) of All Time

 Verdad Gallardo
story-4

Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

 Joe Kucinski
story-5

Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

 Verdad Gallardo
story-6

Top 10 Corvettes Coming to Mecum Indy 2026!

 Brett Foote
story-7

Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

 Michael S. Palmer
story-8

10 Revolutionary 'Corvette Firsts' Most People Don't Know

 Joe Kucinski
story-9

5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

 Michael S. Palmer
Old Jul 27, 2017 | 08:56 AM
  #9  
lilesv's Avatar
lilesv
Thread Starter
Advanced
20 Year Member
 
Joined: Feb 2003
Posts: 95
Likes: 0
From: Stafford VA
Default

Originally Posted by 65GGvert
Here's my theory based on wild speculation. IF that's the correct stamping for the engine, someone put a 67 300hp engine in and didn't bother to stamp the VIN. Perhaps a warranty replacement?
Now THAT makes sense. Have no idea how to research to find out if that was the case, though!
Reply
Old Jul 27, 2017 | 08:58 AM
  #10  
Krystal's Avatar
Krystal
Race Director
20 Year Member
 
Joined: Jan 2003
Posts: 18,341
Likes: 101
Default

WOW!!

.....and this is why I won't pay up for a car based on it's having an "original" numbers matching engine.........unless it was TRULY a collectible with gigantic appreciation potential. Seems to me you could make the argument to do so for a '67 427 car easily......... but none of the much more common small block cars would make the cut for me.

Good luck with this....... you might have an original engine here......but even if you do......you now have a new dilemma to resolve.

How much extra do you ask for "Matching #s" original when you have a Fluke number for the year 1966 that makes any future buyer nervous about paying up?

Since you bought the car in 1972......... it wasn't an issue when you bought.........but the next buyer sure has a problem if you ask for the extra cash a matching #s car can often command.

Last edited by Krystal; Jul 27, 2017 at 09:01 AM.
Reply
Old Jul 27, 2017 | 09:22 AM
  #11  
jrs 427's Avatar
jrs 427
Drifting
10 Year Member
 
Joined: Feb 2005
Posts: 1,788
Likes: 131
Default

Originally Posted by Krystal
WOW!!

.....and this is why I won't pay up for a car based on it's having an "original" numbers matching engine.........unless it was TRULY a collectible with gigantic appreciation potential. Seems to me you could make the argument to do so for a '67 427 car easily......... but none of the much more common small block cars would make the cut for me.

Good luck with this....... you might have an original engine here......but even if you do......you now have a new dilemma to resolve.

How much extra do you ask for "Matching #s" original when you have a Fluke number for the year 1966 that makes any future buyer nervous about paying up?

Since you bought the car in 1972......... it wasn't an issue when you bought.........but the next buyer sure has a problem if you ask for the extra cash a matching #s car can often command.



If the buyer is a " number cruncher specialist " he is sure to find other picky points to reduce the value. Does anyone ever buy a vehicle on condition ? Way too much emphasis placed on a stamp number set. Just an excuse to haggle price. If the rest of the car is sound its all that matters. Tire kickers to the end of the line.
Reply
Old Jul 27, 2017 | 09:35 AM
  #12  
lilesv's Avatar
lilesv
Thread Starter
Advanced
20 Year Member
 
Joined: Feb 2003
Posts: 95
Likes: 0
From: Stafford VA
Default

Originally Posted by Krystal
How much extra do you ask for "Matching #s" original when you have a Fluke number for the year 1966 that makes any future buyer nervous about paying up?

Since you bought the car in 1972......... it wasn't an issue when you bought.........but the next buyer sure has a problem if you ask for the extra cash a matching #s car can often command.
True, true. But how do you sell a car that's been in the family for forty-five (45) years? It's sure not a low mileage car - I put 266K on it myself. B'longs to son now; he grew up in it. He's doing a frame-off but since he can't prove the engine, he's making small modifications. For instance, coating the differential case, stainless brake lines, etc. It ain't going on the auction block anytime soon
Reply
Old Jul 27, 2017 | 09:48 AM
  #13  
lilesv's Avatar
lilesv
Thread Starter
Advanced
20 Year Member
 
Joined: Feb 2003
Posts: 95
Likes: 0
From: Stafford VA
Default

Originally Posted by lilesv
Here's one, more to come.

Thanks!
More...
Attached Images   
Reply
Old Jul 27, 2017 | 09:55 AM
  #14  
Mikado463's Avatar
Mikado463
Le Mans Master
Supporting Lifetime Gold
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Feb 2012
Posts: 5,630
Likes: 537
From: SE Pa
Default

Originally Posted by lilesv
It's supposedly the original engine, according to the original owner.
does the original owner have a reason to lie to you that you suspect ?

Originally Posted by lilesv
Now THAT makes sense. Have no idea how to research to find out if that was the case, though!
I'm confused, again, if you have a direct line to the original owner what more do you need ?
Reply
Old Jul 27, 2017 | 11:00 AM
  #15  
jrm5657's Avatar
jrm5657
Melting Slicks
20 Year Member
Active Streak: 30 Days
Liked
Top Answer: 1
 
Joined: Jun 2001
Posts: 2,750
Likes: 724
From: Fountain Hills Arizona
2022 C2 of the Year Finalist - Modified
Default

If it doesn't have your VIN number stamped on the pad, then it is very, very unlikely to be the original engine. Sounds like a 67 engine that was replaced sometime in the early life of the car. Depends on when the original owner purchased the car, could have been swapped out by the dealer before it was sold, you just never know.

You have enjoyed the car for many years with this engine, hopefully your son will do the same!!
Reply
Old Jul 27, 2017 | 11:58 AM
  #16  
Bill Pilon's Avatar
Bill Pilon
Burning Brakes
Veteran: Army
20 Year Member
 
Joined: Jun 2005
Posts: 867
Likes: 260
From: Hinesville, GA & Oswego, NY
Default

Originally Posted by jrm5657
If it doesn't have your VIN number stamped on the pad, then it is very, very unlikely to be the original engine. Sounds like a 67 engine that was replaced sometime in the early life of the car. Depends on when the original owner purchased the car, could have been swapped out by the dealer before it was sold, you just never know.

You have enjoyed the car for many years with this engine, hopefully your son will do the same!!


However, keep this in mind with the ethics and moral fiber that exists today even if it had the VIN stamped on the pad there is more than an even chance that it is not original to that car.

In the Corvette world of restamping, fake tags and fake date coding is considered normal activity, in the real world some of those actions would be considered fraud.

Bill
Reply
Old Jul 27, 2017 | 12:13 PM
  #17  
Powershift's Avatar
Powershift
Race Director
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Apr 2005
Posts: 11,260
Likes: 2,130
From: Bowling Green, Kentucky
Default

The engine casting #657 was not even available until very late in the 1966 model year (May-July 1966). It was a 1967 model year block casting.

Block for a 1965 model car was #870 and #174 for most of 1966 model year.

Larry

Last edited by Powershift; Jul 27, 2017 at 12:16 PM.
Reply

Get notified of new replies

To original engine?

Old Jul 27, 2017 | 01:52 PM
  #18  
68hemi's Avatar
68hemi
Race Director
 
Joined: Nov 2003
Posts: 10,696
Likes: 3,090
From: Cottonwood AZ
C1 of Year Finalist (performance mods) 2019
Default

Originally Posted by Bill Pilon


However, keep this in mind with the ethics and moral fiber that exists today even if it had the VIN stamped on the pad there is more than an even chance that it is not original to that car.

In the Corvette world of restamping, fake tags and fake date coding is considered normal activity, in the real world some of those actions would be considered fraud.

Bill
This and the post it quoted is all true.

This is NOT the factory born engine without the V.I.N. and of course the facts stated regarding the casting numbers, dates and stamping. If the original owner says it was in the car when he bought it then it was replaced by the dealer prior to sale likely as a warranty replacement.
Reply
Old Jul 27, 2017 | 02:05 PM
  #19  
lilesv's Avatar
lilesv
Thread Starter
Advanced
20 Year Member
 
Joined: Feb 2003
Posts: 95
Likes: 0
From: Stafford VA
Default

Originally Posted by Mikado463
does the original owner have a reason to lie to you that you suspect ?



I'm confused, again, if you have a direct line to the original owner what more do you need ?
Can't think of any reason for the orig owner to lie - I paid $1200 for the car and would have paid that with or without the original engine. I had a direct line to him in 1972, but there's no way I can remember his name after this many years...

Old age ain't for sissies
Reply
Old Jul 27, 2017 | 02:11 PM
  #20  
93Polo's Avatar
93Polo
Team Owner
25 Year Member
Liked
Loved
Community Favorite
 
Joined: Oct 1999
Posts: 31,976
Likes: 487
From: Guinness Its whats for B'fast JAWGA
CI 3-4-5-9 Veteran
Default

In 1972 who thought the original motor would add so much value?

As posted above, I hope you and your son enjoy the car. I am kind of happy my 70 Chevelle SS396 is not an original motor car, as I am free to modernize the driveline without any thought of modifying a survivor.
Reply



All times are GMT -4. The time now is 11:14 AM.

story-0
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE
story-1
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-2
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-3
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE
story-4
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

Slideshow: Ranking the top 10 Corvette engines by torque output.

By Joe Kucinski | 2026-05-05 11:58:09


VIEW MORE
story-5
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

Slideshow: A Corvette pace car nearly matching IndyCar speeds sounds exaggerated, until you look at the numbers.

By Verdad Gallardo | 2026-05-04 20:03:36


VIEW MORE
story-6
Top 10 Corvettes Coming to Mecum Indy 2026!

Among a rather large group of them.

By Brett Foote | 2026-05-04 13:56:44


VIEW MORE
story-7
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

Slideshow: the top 10 things Corvette owners want in the C9 Corvette

By Michael S. Palmer | 2026-04-30 12:41:15


VIEW MORE
story-8
10 Revolutionary 'Corvette Firsts' Most People Don't Know

Slideshow: 10 Important Corvette 'firsts' that every fan should know.

By Joe Kucinski | 2026-04-29 17:02:16


VIEW MORE
story-9
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

Slideshow: Should you buy a 2020-2026 Corvette or wait for 2027?

By Michael S. Palmer | 2026-04-22 10:08:58


VIEW MORE