block numbers
Thread Starter
Instructor
Joined: May 2005
Posts: 164
Likes: 0
From: Ann Arbor MI
block numbers
I'm looking at a used motor to purchase and the seller tells me its from a corvette I know at one time I saw information regarding the breakdown of the engine codes but I can't find that does anyone have the link or can decode these numbers that are on the block 136417403 V0306 ckz thanks
Team Owner
Joined: Jun 2000
Posts: 38,923
Likes: 1,481
From: Southbound
Cruise-In II Veteran
Yep. It's a Corvette block. The CKZ code idicates a base engine 350 CID '72-'77. V0306 is the plant code and engine assembly date. V for Flint, Michigan, engine assembly plant and 0306 for March 6th.
The engine pad should also be stamped 1SXXXXXX which indicates Chevrolet (1), St. Louis (S) and the consectutive unit number of the Corvette it came out of.
The engine pad should also be stamped 1SXXXXXX which indicates Chevrolet (1), St. Louis (S) and the consectutive unit number of the Corvette it came out of.
Drifting
Joined: May 2006
Posts: 1,544
Likes: 0
From: Youngstown Ohio
big block codes with links to small block codes
http://www.nastyz28.com/bbcmenu.html
www.ajgeneral.com/bbc_block_casting_numbers/
http://www.nastyz28.com/bbcmenu.html
www.ajgeneral.com/bbc_block_casting_numbers/
Drifting
Joined: May 2006
Posts: 1,544
Likes: 0
From: Youngstown Ohio
EasyMike
Please help with my education;
When someone has a "matching numbers" vette, they could have a replacement engine if it is the "same" engine from another vette within a reasonable time period from the build?
Just trying to understand as it doesn't seem that thier are numbers corresponding to the VIN....................
When someone has a "matching numbers" vette, they could have a replacement engine if it is the "same" engine from another vette within a reasonable time period from the build?
Just trying to understand as it doesn't seem that thier are numbers corresponding to the VIN....................
Le Mans Master
Joined: Apr 2004
Posts: 7,106
Likes: 38
From: Newark DE
Originally Posted by 73-84 IMSA Widebody
Please help with my education;
When someone has a "matching numbers" vette, they could have a replacement engine if it is the "same" engine from another vette within a reasonable time period from the build?
Just trying to understand as it doesn't seem that thier are numbers corresponding to the VIN....................
When someone has a "matching numbers" vette, they could have a replacement engine if it is the "same" engine from another vette within a reasonable time period from the build?
Just trying to understand as it doesn't seem that thier are numbers corresponding to the VIN....................
matching numbers is a very overused and often abused and misused term.
Matching numbers means that the vin direvitive is properly stamped on the motor, besides being the correct casting number and date.
it ORIGINALLY meant that if the numbers matched than it was the original motor in the car.
Nowadays people will find a correct casting block with a correct date code for their car, have it restamped and call it matching numbers - it IS matching numbers but the original purpose of the term, meaning the orignal motor, is now different in this context. People will do this to get a higher resale on the car. Some people will even to to the extent of trying to pass a replacement moroe with the correct casting and date codes but without the VIN direvitive stapmed on the pad as a matching numbers car but that is entirely wrong.
Personally, I don't bother to ask if it's 'matching numbers" anymore, I ask the more pertinent question which is "is it the ORIGINAL motor".
Team Owner
Joined: Jun 2000
Posts: 38,923
Likes: 1,481
From: Southbound
Cruise-In II Veteran
Originally Posted by 73-84 IMSA Widebody
...doesn't seem that thier are numbers corresponding to the VIN...
I'm wondering whether your 136417403 stamping is actually 1S6417403.
Drifting
Joined: Jan 2005
Posts: 1,438
Likes: 3
From: Florissant MO
Originally Posted by 73-84 IMSA Widebody
big block codes with links to small block codes
http://www.nastyz28.com/bbcmenu.html
www.ajgeneral.com/bbc_block_casting_numbers/
http://www.nastyz28.com/bbcmenu.html
www.ajgeneral.com/bbc_block_casting_numbers/
http://www.mortec.com/castnum.htm
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)
Joe Kucinski
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!
Verdad Gallardo
Top 10 Corvettes Coming to Mecum Indy 2026!
Brett Foote
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!
Michael S. Palmer
10 Revolutionary 'Corvette Firsts' Most People Don't Know
Joe Kucinski
