small block chevy confusion - Hot Rod Forum : Hotrodders Bulletin Board
Hotrodders.com -- Hot Rod Forum



Register FAQ Search Today's Posts Unanswered Posts Auto Escrow Insurance Auto Loans
Hot Rod Forum : Hotrodders Bulletin Board > Tech Help> Engine
User Name
Password
lost password?   |   register now

Reply
 
LinkBack Thread Tools
  #1 (permalink)  
Old 12-26-2006, 11:54 AM
Registered User
 
Join Date: Dec 2006
Location: chance,maryland
Posts: 30
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
small block chevy confusion

I just bought a used chevy engine advertised as a 350ci out of a 1976 suburban. It is a 4-bolt main and the block casting number (3970010) says it is a 350ci But when I run the engine code (V0628TLK), the suffix (TLK) says that it is a 1980, 400ci. I,m confused. Can anyone explain this ?

I,m trying to get an answer without pulling the heads and measuring the bore and stroke.

    Advertisement
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 12-26-2006, 12:13 PM
Registered User
 
Last photo:
Join Date: Nov 2004
Location: Cali
Posts: 994
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
A 3970010 block certainly won't be a 400. It will be a 350. You can mis-stamp them, but you certainly won't miscast them.
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 12-26-2006, 12:17 PM
curtis73's Avatar
Hates: Liver. Loves: Diesel
 
Last wiki edit: How to find cheap parts
Last journal entry: Found an LQ9 today
Last photo:
Join Date: Dec 2005
Location: Carlisle, PA
Age: 41
Posts: 5,173
Wiki Edits: 16

Thanks: 7
Thanked 9 Times in 6 Posts
Agreed. Stampings are also not very reliable. Sometimes they're just stamped wrong, but a mold doesn't make a mistake
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 12-26-2006, 12:20 PM
Registered User
 
Join Date: Nov 2005
Location: Duffield ,Va
Age: 67
Posts: 526
Wiki Edits: 0

Thanks: 0
Thanked 1 Time in 1 Post
Quote:
Originally Posted by jjpodlas
I just bought a used chevy engine advertised as a 350ci out of a 1976 suburban. It is a 4-bolt main and the block casting number (3970010) says it is a 350ci But when I run the engine code (V0628TLK), the suffix (TLK) says that it is a 1980, 400ci. I,m confused. Can anyone explain this ?

I,m trying to get an answer without pulling the heads and measuring the bore and stroke.

(block casting number (3970010) says it is a 350ci )
This should be a 350 but it is not necessarily a 4-bolt, they made it both ways 2 & 4 bolt in the later years.
As for a 400, the harmonic balancer will have a cutout (recess)on the back side and will not be perfectly round per say (this is how they balanced them) and also the flexplate will have a weight on it if its a 400.
Reply With Quote Quick reply to this message
  #5 (permalink)  
Old 12-26-2006, 12:51 PM
Registered User
 
Join Date: Dec 2006
Location: chance,maryland
Posts: 30
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Thanks for the help
I pulled the pan, so I know its a 4-bolt. I will check the harmonic balancer.
What is the flexplate?
Reply With Quote Quick reply to this message
  #6 (permalink)  
Old 12-26-2006, 01:01 PM
poncho62's Avatar
Out of the Loop Moderator
 
Last wiki edit: Streetbeasts links
Last journal entry: at car show
Last photo:
Join Date: Oct 2003
Location: Hanover, Ontario, Canada
Age: 62
Posts: 16,970
Wiki Edits: 5

Thanks: 22
Thanked 313 Times in 241 Posts
The flexplate, or ring gear is the large gear at the back of the engine that the starter meshes with. On a standard its the flywheel.
__________________
Ontario Rodders
Reply With Quote Quick reply to this message
  #7 (permalink)  
Old 12-27-2006, 11:27 PM
Member
 
Last photo:
Join Date: May 2003
Location: Shreveport LA
Age: 65
Posts: 5,103
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Suffixes can be the same for different engines. A 400 with that suffix would have a casting number that matched a 400 block.
Reply With Quote Quick reply to this message
  #8 (permalink)  
Old 12-27-2006, 11:32 PM
mynuffinfutsitch's Avatar
Registered User
 
Join Date: Apr 2006
Location: Lawtell,LA
Age: 26
Posts: 119
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Quote:
Originally Posted by poncho62
The flexplate, or ring gear is the large gear at the back of the engine that the starter meshes with. On a standard its the flywheel.
its also what the torque (or stall) converter bolts too
Reply With Quote Quick reply to this message

Recent Engine posts with photos

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Hot Rod Forum : Hotrodders Bulletin Board forums, you must first register.
Please enter your desired user name (usually not your first and last name), your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
small block chevy engine id code help princesswz Engine 21 11-19-2012 07:10 PM
Why I have grown to hate the Small Block Chevy..... an essay Centerline Hotrodders' Lounge 316 02-08-2012 11:46 PM
big block or small block chevy 69YENKONOVA Engine 81 05-13-2010 08:26 AM
Chevy small block fuel injection homesimpsonr Engine 7 05-19-2007 05:11 PM
Chevy Small Block Heads druss32 Engine 17 05-10-2006 09:35 PM


All times are GMT -6. The time now is 02:51 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
Copyright Hotrodders.com 1999 - 2012. All Rights Reserved.