Factory Correct Resto Corvette Restoration Tips, Bodywork, Numbers Matching, Period-Correct Modifications or Original Condition
Sponsored by:
Sponsored by:

Casting # question.

Thread Tools
 
Search this Thread
 
Old Feb 11, 2012 | 09:38 PM
  #1  
rajsid's Avatar
rajsid
Thread Starter
Melting Slicks
15 Year Member
 
Joined: Dec 2006
Posts: 2,483
Likes: 1
From: Bay Area CA
Default Casting # question.

Is it possible for a 3963512 block to have a casting date of K27 8?

According to most of the casting number charts available on the internet, 3963512 was produced between 1969-71. How can it have a 1968 casting date?

http://www.teufert.net/bbchevy/bbcast.htm
Reply
Old Feb 12, 2012 | 08:48 AM
  #2  
gbvette62's Avatar
gbvette62
Race Director
25 Year Member
Liked
Loved
Community Favorite
 
Joined: Oct 2000
Posts: 12,682
Likes: 3,135
From: Shamong, NJ
Default

I think your confusing the production date of a part, with the vehicle model year.

The 512 block was used in 69 model year cars. Production of the 69 Corvette started in September of 68. Any 69 Corvette built in 1968, would have to have parts that were made in 68, and many cars built in 69, can be found with parts made in 68 too.

With 69 production beginning in September 68, the first 3963512 blocks were probably cast in August 68.

A 512 block, dated K278 (November 28, 1968), would have likely have ended up in a 69 Corvette built around December 68 or January 69.
Reply
Old Feb 13, 2012 | 07:48 AM
  #3  
Easy Mike's Avatar
Easy Mike
Team Owner
Supporting Lifetime
20 Year Member
 
Joined: Jun 2000
Posts: 38,923
Likes: 1,482
From: Southbound
Cruise-In II Veteran
Default

Originally Posted by rajsid
...Is it possible for a 3963512 block to have a casting date of K27 8?...
Yes.

Reply
Old Feb 13, 2012 | 01:05 PM
  #4  
rajsid's Avatar
rajsid
Thread Starter
Melting Slicks
15 Year Member
 
Joined: Dec 2006
Posts: 2,483
Likes: 1
From: Bay Area CA
Default

Thank you guys..
Also... What does the "P" right below the casting number mean?



Reply
Old Feb 13, 2012 | 04:08 PM
  #5  
JohnZ's Avatar
JohnZ
Team Owner
Supporting Lifetime Gold
20 Year Member
Veteran: Army
 
Joined: Oct 2000
Posts: 38,897
Likes: 1,926
From: Washington Michigan
Default

Originally Posted by rajsid
Thank you guys..
Also... What does the "P" right below the casting number mean?



The "P" is for "passenger" - differentiates a standard deck height block from the "tall-deck" truck versions.
Reply
Old Feb 13, 2012 | 05:04 PM
  #6  
rajsid's Avatar
rajsid
Thread Starter
Melting Slicks
15 Year Member
 
Joined: Dec 2006
Posts: 2,483
Likes: 1
From: Bay Area CA
Default

Originally Posted by JohnZ
The "P" is for "passenger" - differentiates a standard deck height block from the "tall-deck" truck versions.
Thanks John
Reply
Old Feb 13, 2012 | 06:25 PM
  #7  
corvetteload's Avatar
corvetteload
Melting Slicks
 
Joined: Aug 2005
Posts: 2,359
Likes: 15
From: Confusion
Default

My 512 is J38, told by one "expert" the earliest one he has ever seen (debatable of course)
Reply
Old Feb 27, 2012 | 09:49 AM
  #8  
provette67's Avatar
provette67
Le Mans Master
20 Year Member
Liked
Loved
Top Answer: 3
 
Joined: Apr 2002
Posts: 5,476
Likes: 771
From: Kirtland Ohio
Default

according to Chevy by the numbers the block went into production in October '68 so J of '68 would be a very early block
Reply

Get notified of new replies

To Casting # question.

Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

10 Ugly Corvettes That We Still Kinda Love

 Joe Kucinski
story-1

Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

 Brett Foote
story-2

10 Things Every Corvette Owner Needs (2026 Edition)

 Michael S. Palmer
story-3

8 Most "Only Corvette Owners Understand" Quirks and Problems

 Pouria Savadkouei
story-4

10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

 Joe Kucinski
story-5

How Much Horsepower Every Corvette Engine "LOST" in 1972

 Joe Kucinski
story-6

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

 Michael S. Palmer
story-7

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

 Joe Kucinski
story-8

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

 Joe Kucinski
story-9

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

 Verdad Gallardo




All times are GMT -4. The time now is 07:53 PM.

story-0
10 Ugly Corvettes That We Still Kinda Love

Slideshow: 10 ugly Corvettes that we still kinda love.

By Joe Kucinski | 2026-06-03 10:34:17


VIEW MORE
story-1
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

A lot of money has changed hands at the online auction house over the years.

By Brett Foote | 2026-06-03 10:21:50


VIEW MORE
story-2
10 Things Every Corvette Owner Needs (2026 Edition)

Slideshow: 10 great gifts Corvette enthusiasts actually want for Father's Day!

By Michael S. Palmer | 2026-06-03 15:43:40


VIEW MORE
story-3
8 Most "Only Corvette Owners Understand" Quirks and Problems

Slideshow: These are the quirks, annoyances, and oddly lovable problems that every Corvette owner eventually learns to live with.

By Pouria Savadkouei | 2026-05-28 09:31:39


VIEW MORE
story-4
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

Slideshow: 10 reasons why the C6 Z06 is still a performance benchmark after 20 years.

By Joe Kucinski | 2026-05-27 17:20:09


VIEW MORE
story-5
How Much Horsepower Every Corvette Engine "LOST" in 1972

Slideshow: How much horsepower every Corvette engine lost in 1972.

By Joe Kucinski | 2026-05-27 16:54:53


VIEW MORE
story-6
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-7
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-8
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-9
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