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

427 engine dates

Thread Tools
 
Search this Thread
 
Old Apr 27, 2014 | 04:00 PM
  #1  
jkg2101's Avatar
jkg2101
Thread Starter
Racer
10 Year Member
Conversation Starter
All Eyes On Me
Photogenic
 
Joined: Dec 2013
Posts: 298
Likes: 16
Default 427 engine dates

I have been doing some searching through the forums but here is my question:

my father is looking at a 67 427 vette. the head casting date is 3/30/67 and the car was assembled on april 7 (H07)
that seems close but OK, according to the forum.

the block is not correct, but the seller has a 427 block with date code a 11 67 (Jan 11) to go with the car. that block also has January 67 heads as well. according to my searches, an engine casting date 3 months before the car was assembled seems too long.

the goal is to make a correct 1967 car restoration, for fun, not for profit. but as long as we're spending the money, would like to know we are spending the money correctly.

justin
Reply
Old Apr 27, 2014 | 04:11 PM
  #2  
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 jkg2101
I have been doing some searching through the forums but here is my question:

my father is looking at a 67 427 vette. the head casting date is 3/30/67 and the car was assembled on april 7 (H07)
that seems close but OK, according to the forum.

the block is not correct, but the seller has a 427 block with date code a 11 67 (Jan 11) to go with the car. that block also has January 67 heads as well. according to my searches, an engine casting date 3 months before the car was assembled seems too long.

the goal is to make a correct 1967 car restoration, for fun, not for profit. but as long as we're spending the money, would like to know we are spending the money correctly.

justin
H07 is March, 1967, not April. An engine casting date 2-3 months prior to car assembly isn't "typical", but it's not unusual, either; that's why you're allowed up to six months prior to car assembly for dated components.
Reply
Old Apr 27, 2014 | 04:12 PM
  #3  
1974purchase's Avatar
1974purchase
Racer
 
Joined: Oct 2011
Posts: 488
Likes: 2
From: Downers Grove Illinois
Default dates on components

my dates are as follows:

Remarkable continuity of dates / numbers of key components (engine casting date October 13, 1966, alternator dated October 13, 1966, transmission date of October 31, 1966 (in addition, number stamp matching the car serial number and engine stamp), rear end dated October 31, 1966, rear end stamp "FB" designates 4.11 ratio for a big block engine which are listed as options on the tank sticker, windshield glass dated October 1966, engine assembled November 7, 1966, trim tag date of November 15, 1966, body marking "395" on firewall and rear bulkhead facing the gas tank matching handwritten number "395" on tank sticker, handwritten "395" on tank sticker appropriate for serial number of car, correct non dated jack, and more! ).
Reply
Old Apr 27, 2014 | 04:27 PM
  #4  
jkg2101's Avatar
jkg2101
Thread Starter
Racer
10 Year Member
Conversation Starter
All Eyes On Me
Photogenic
 
Joined: Dec 2013
Posts: 298
Likes: 16
Default

Wow - H 07 is March, not April? I guess I have been counting wrong - In the car assembly date, then 'A' would be august? i guess that makes sense. thanks for saving me there. I may have been misled or just misunderstood. justin
Reply
Old Apr 27, 2014 | 06:22 PM
  #5  
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 jkg2101
Wow - H 07 is March, not April? I guess I have been counting wrong - In the car assembly date, then 'A' would be august?
In 1967, St. Louis body car productions started in August (1966) so the first letter (A) for 1967 dates would be August, 1966. Same thing for 1967 AO Smith bodies. In 1966, St. Louis body production started in September, so A date for a St. Louis 1966 car is September, 1965. However, AO Smith body production that year started in August, so A date for AO smith cars was August, 1965. See? Gets confusing but just always remember to look it up to double check when in doubt
Reply
Old Apr 27, 2014 | 06:22 PM
  #6  
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 jkg2101
Wow - H 07 is March, not April? I guess I have been counting wrong - In the car assembly date, then 'A' would be august? i guess that makes sense. thanks for saving me there. I may have been misled or just misunderstood. justin
The date code format for the body build date on the trim tag is unique to that application, and was different from year to year, in addition to being different from St. Louis to A.O. Smith in the same year. "H" was April only in 1966, on St. Louis bodies.
Reply

Get notified of new replies

To 427 engine dates





All times are GMT -4. The time now is 02:43 AM.

story-0
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-1
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-2
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-3
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-4
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-5
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-6
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-7
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-8
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-9
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