The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.
Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1969 - 1972 Blazers and Jimmys Message Board
Reload this Page 1970 Blazer correct 350 suffix code

Web 67-72chevytrucks.com
Home Forums Gallery Site Merchandise Register FAQ Members List Subscribe Calendar Mark Forums Read


Reply
 
Thread Tools Display Modes
Old 09-12-2014, 01:18 PM   #1
midunes
Registered User
 
midunes's Avatar
 
Join Date: Nov 2013
Location: Norton Shores, Michigan
Posts: 911
1970 Blazer correct 350 suffix code
I need to know what the correct suffix code is for my early build 1970 4x4 Blazer, 350 w/auto trans, St. Louis plant. I was told it could have been a TAX, TAY, TBC or TMJ. Hope to narrow it down. Thanks
Last edited by midunes; 09-12-2014 at 01:29 PM.
midunes is offline   Reply With Quote
Old 09-12-2014, 06:44 PM   #2
asolde
Registered User
 
asolde's Avatar
 
Join Date: Apr 2012
Location: Henderson Nevada
Posts: 804
Re: 1970 Blazer correct 350 suffix code
I think this best matches TAY 1970 350 convcab, t350 - 255 4 K-10 to 2500 Here is a good web site http://www.nastyz28.com/chevy-engine...ngs.php#suffix
__________________
1972 cheverolet K5 CST Blazer
350/auto/AC/PS/PB/Aux Batt
From Medford, Oregon
asolde is offline   Reply With Quote
Old 09-12-2014, 07:57 PM   #3
midunes
Registered User
 
midunes's Avatar
 
Join Date: Nov 2013
Location: Norton Shores, Michigan
Posts: 911
Re: 1970 Blazer correct 350 suffix code
Quote:
Originally Posted by asolde View Post
I think this best matches TAY 1970 350 convcab, t350 - 255 4 K-10 to 2500 Here is a good web site http://www.nastyz28.com/chevy-engine...ngs.php#suffix
thanks I'll look at that site right now
midunes is offline   Reply With Quote
Old 09-12-2014, 08:03 PM   #4
midunes
Registered User
 
midunes's Avatar
 
Join Date: Nov 2013
Location: Norton Shores, Michigan
Posts: 911
Re: 1970 Blazer correct 350 suffix code
From nastyz28 site I get this:

TAX 1970 350 convfwd cabs, a/t 255 4 C-10 to 3500

TAY 1970 350 convcab, t350 255 4 K-10 to 2500

TBC 1970 350 convfwd cabs, a/t 255 4 C-10 to 3500

TMJ 1970 350 turhydro 255 4 C-10 to 30
midunes is offline   Reply With Quote
Old 09-12-2014, 08:08 PM   #5
midunes
Registered User
 
midunes's Avatar
 
Join Date: Nov 2013
Location: Norton Shores, Michigan
Posts: 911
Re: 1970 Blazer correct 350 suffix code
Thanks again asole,

TAY 1970 350 convcab, t350 255 4 K-10 to 2500

looks to be the correct engine
midunes is offline   Reply With Quote
Old 09-12-2014, 08:26 PM   #6
midunes
Registered User
 
midunes's Avatar
 
Join Date: Nov 2013
Location: Norton Shores, Michigan
Posts: 911
Re: 1970 Blazer correct 350 suffix code
Can someone with an original 1970 4x4 Blazer confirm?
midunes is offline   Reply With Quote
Old 09-12-2014, 08:27 PM   #7
70gmcjimmy
GMCDAC
 
70gmcjimmy's Avatar
 
Join Date: Apr 2006
Location: Rapid City, SD
Posts: 837
Re: 1970 Blazer correct 350 suffix code
Quote:
Originally Posted by midunes View Post
I need to know what the correct suffix code is for my early build 1970 4x4 Blazer, 350 w/auto trans, St. Louis plant. I was told it could have been a TAX, TAY, TBC or TMJ. Hope to narrow it down. Thanks
I don't know if GMC would be the same but my Jimmy is a 1970 from St. Louis. I still have the original engine. It is a TAY as you all have found.

DAC
Attached Images
 
__________________
1970 GMC K5 Jimmy Custom 4X4 Mom's driver from 1971 to 2001!! Under rebuild!
1972 GMC C2500 Pickup owned since 1979 Needs a rest and refurbish!
1955 GMC 100 2nd design driven almost daily!

Rest In Peace Mom. "Dolly" 7/15/23 - 5/18/09
GMC driver for 30 years!

70gmcjimmy is offline   Reply With Quote
Old 09-12-2014, 08:35 PM   #8
midunes
Registered User
 
midunes's Avatar
 
Join Date: Nov 2013
Location: Norton Shores, Michigan
Posts: 911
Re: 1970 Blazer correct 350 suffix code
Great thanks!! Now for the WTB ad. This site can make life so much easier.
midunes is offline   Reply With Quote
Old 09-12-2014, 08:47 PM   #9
71swb4x4
Senior Member
 
71swb4x4's Avatar
 
Join Date: Nov 2003
Location: Brookings, SD
Posts: 10,499
Re: 1970 Blazer correct 350 suffix code
Sounds like you might have it. My 71 Blazer was TBG.
__________________
Some people are like slinkies, they aren't good for anything, but you can't help but smile when you see one tumble down the stairs.
71swb4x4 is offline   Reply With Quote
Old 09-12-2014, 08:55 PM   #10
midunes
Registered User
 
midunes's Avatar
 
Join Date: Nov 2013
Location: Norton Shores, Michigan
Posts: 911
Re: 1970 Blazer correct 350 suffix code
Well I got the easy part. Now I just need to find the an actual engine with the TAY code.
midunes is offline   Reply With Quote
Old 09-12-2014, 09:02 PM   #11
bigrigpardo
Registered User
 
Join Date: Sep 2008
Location: NEW MILFORD NJ
Posts: 1,453
Re: 1970 Blazer correct 350 suffix code
I have a TBC if interested
bigrigpardo is offline   Reply With Quote
Old 09-12-2014, 09:52 PM   #12
Senorx
Registered User
 
Senorx's Avatar
 
Join Date: Jan 2014
Location: South Texas
Posts: 567
Re: 1970 Blazer correct 350 suffix code
Quote:
Originally Posted by 71swb4x4 View Post
Sounds like you might have it. My 71 Blazer was TBG.
My 71 K5 Blazer is also a TBG.
Senorx is offline   Reply With Quote
Old 09-12-2014, 10:10 PM   #13
DeadheadNM
Carpe manana

 
DeadheadNM's Avatar
 
Join Date: Dec 2010
Location: Eau Claire, WI
Posts: 12,481
Re: 1970 Blazer correct 350 suffix code
You guys may know this but decking the block in a rebuild can/will remove the stamped code so may want to skip that.
__________________
1972 K5 CST Highlander Blazer: http://67-72chevytrucks.com/vboard/s...d.php?t=708547
1972 K20 Cheyenne Super: http://67-72chevytrucks.com/vboard/s...d.php?t=528308

Members met: ORANGBLAZ, 2003 silverado, MikeCofield, BB72CHEVKT, Duncan&Son, Sameyrasmea72, THENEWMEXICAN, HotRod C/10, brianthelion02, Sport/Truck, ryanroo, michael bustamante, Dirt's72, Already Gone, WestButteTruck, 57taskforce, Moreyel, painterljp, AASmedic, SoCoC10, Lumaestas, carbuff382, Chevyland
DeadheadNM is offline   Reply With Quote
Old 09-12-2014, 10:38 PM   #14
midunes
Registered User
 
midunes's Avatar
 
Join Date: Nov 2013
Location: Norton Shores, Michigan
Posts: 911
Re: 1970 Blazer correct 350 suffix code
Quote:
Originally Posted by DeadheadNM View Post
You guys may know this but decking the block in a rebuild can/will remove the stamped code so may want to skip that.
Very true. Maybe I should just get the correct cast # and date code then call it good. Or just put the LS376 like this guy has been telling me
midunes is offline   Reply With Quote
Reply

Bookmarks

« Previous Thread | Next Thread »
Thread Tools
Display Modes
Linear Mode Linear Mode

Posting Rules
You may not post new threads
You may not 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
Forum Jump


All times are GMT -4. The time now is 04:40 PM.

67-72chevytrucks.com - Archive - Privacy Statement - Top

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2025, vBulletin Solutions Inc.
Copyright 1997-2025 67-72chevytrucks.com