Small Block Chevy ID - 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> Hotrodding Basics
User Name
Password
lost password?   |   register now

Reply
 
LinkBack Thread Tools
  #1 (permalink)  
Old 07-09-2011, 05:05 PM
Registered User
 
Join Date: Jul 2011
Location: Cheyenne, WY
Posts: 1
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Small Block Chevy ID

I want to ID my small block Chevy engine. The numbers I have include:
(a)the casting number is 3970010, (b) there are two serial numbers on the front passengers side of the engine, these numbers are V0505TDR and C8F454789. I would really like to know cubic inches, horsepower and 4 bolt main or 2. Can anyone help or give direction. Thanks
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 07-09-2011, 09:29 PM
1ownerT's Avatar
Home School Valedictorian
 
Last wiki edit: Health and safety in the shop or garage Last photo:
Join Date: Dec 2004
Location: Iowa
Age: 52
Posts: 1,645
Wiki Edits: 4

Thanks: 0
Thanked 3 Times in 3 Posts
TDR 1972 350 conv. cab, a/t 175 4 K-10 & 20
TDR 1980 350 conv. cab, a/t, Cal L LS9 155 4 C-10 & 15

http://www.nastyz28.com/chevy-engine...ngs.php#suffix
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 07-10-2011, 06:45 PM
Registered User
 
Join Date: Jul 2011
Location: Frierson la
Posts: 2
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Ok guys I need some help I have a 350 block and I have been unsuccessful in tracking done the year it was made. On the front pad by the right head I have the stamped number 87789 and under that is the letter c but that's it no letters no vin or anything. So I am not sure how to decode it any help would be great. Also I read on this post abut the 4 dig code on the opposite side of the cast number 3970010 that you might be able to us it to tell the year the code is c175 It Has the 010 020 numbers next to the filter but followed by the number 158 and at the rear of the block next to a freeze plug it has h7 and under that 509 and last next to the casting number it has a large gm 18. With all this info can anyone tell me about this block. I feel I have did my home work on this but is there something I am missing
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 07-11-2011, 05:55 AM
TroyBoy's Avatar
Psychomotors
 
Join Date: Jan 2006
Location: East Bonne Terre ,Missouri
Age: 48
Posts: 662
Wiki Edits: 0

Thanks: 11
Thanked 5 Times in 5 Posts
c=march, 17 th , 1975. Might I ask why it matters? Everyone is always posting these questions. I understand the question about what the engine actually is i.e. 283 or 350 , 2 or 4 bolt etc. but I don't understand all the questions about what year , what application , etc. Just curious.

Last edited by TroyBoy; 07-11-2011 at 06:02 AM.
Reply With Quote Quick reply to this message
  #5 (permalink)  
Old 07-11-2011, 01:28 PM
fast68's Avatar
likes chevy trucks & boobies
 
Last photo:
Join Date: Oct 2005
Location: IL
Posts: 1,970
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
yeah these are all 350 engines from 1969 to 1979

also possibly 302 or 327 since are all 4" bore blocks with this casting code. in 69 it could be any of the three sizes.

the only real difference in them all is 4 bolt or 2 bolt mains and if it is extra nickel content for a more hard wearing block

this would be both 010 and 020 numbers cast on them in bellhousing or timing gear area

010 and no 020 is standard block, not hard wearing extra nickel content

3970010 was the most common and very general 1970s years 4" bore block casting code for three engine sizes all large journal and three different strokes

3970014 was the next most common 4" bore casting

stamping codes starting with T were truck and most were 4 bolt and many cars 1973 older were 4 bolt as well

the later the year the more likely it will not be high nickel and the more likely it will be lower HP rating(compression and camshaft and carb differences for a certain app)and a regular 2 bolt main. trucks generally got higher torque rating and less hp and cars generally got more hp and less torque. most any given year there were many different engines of a certain size.

the date codes are easy the letter is the month in order from A to L but most all will be A to D which is when the foundries seem to have been busy casting most of the parts.

the next digit or two is the day of the month

and the last digit is the last digit of the year, and it could be any decade though

you have to work out what decade it is by the casting code and with other clues on the parts.

Last edited by fast68; 07-11-2011 at 01:39 PM.
Reply With Quote Quick reply to this message
  #6 (permalink)  
Old 07-11-2011, 04:15 PM
TroyBoy's Avatar
Psychomotors
 
Join Date: Jan 2006
Location: East Bonne Terre ,Missouri
Age: 48
Posts: 662
Wiki Edits: 0

Thanks: 11
Thanked 5 Times in 5 Posts
Not to argue with you Fast but in the Chevrolet Small Block Parts Interchange Manual by Ed Staffel, he says the "010" are 1 percent extra nickle but that the "010"/"020" blocks are 1 percent extra tin and 2 percent extra nickle. I don't know for sure about that but I've never read anything contradicting it either. I have found a few blocks over the years that didn't have an "010" on them , so I just figured that they was just a standard block.
Reply With Quote Quick reply to this message

Recent Hotrodding Basics 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:
If you do not want to register, fill this field only and the name will be used as user name for your post.
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
Big block pil pump on small block Chevy dallam11 Engine 22 03-24-2012 07:36 PM
Can You I D a Block & Heads Small Block Chevy please? Rob Keller Engine 19 01-30-2011 08:39 AM
Big Block vs Small Block Chevy bigjoedo Engine 82 05-03-2010 03:36 PM
1986 305 chevy vs. 1987 305 chevy new style small block mtinsley Engine 2 08-22-2003 11:55 AM
55 chevy small block to big block ehchvac Engine 0 05-02-2002 08:23 PM


All times are GMT -6. The time now is 01:32 AM.


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.