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 1973 - 1987 Chevrolet & GMC Squarebody Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 07-24-2011, 05:55 PM   #1
GmtGmt
Conversion Truck Addicted
 
GmtGmt's Avatar
 
Join Date: Sep 2009
Location: Denmark, Europe
Posts: 1,551
350 cui with a TH400?

i bought this the 77 4x4 Stepside but have not been able to pick it up as of yet
just trying to figur out what i really have bought

the seller told me his fairly sure its a 400 smallblock but hes not sure

as far i can tell its a TH400 tranny Right? what would it make any sense if it had a 350 infront or could this be the 400 smallblock?

Name:  billede3169_800x600.jpg
Views: 139
Size:  58.5 KB

sorry i have this in bigger resolutions but not any others pics of the engine
__________________
Thomas

Quote:
Tonight mine pulled a few cars out of snowbanks, and is sitting in my driveway, icicles on the grille, wheels just white cakes of snow, buried up to the lug nuts in powder, straps and chains wrapped around the bumpers, the outline of the wipers clear in 4 inches of snow on the windshield... A tired warrior of the 1980s in a world of low profile tires, front wheel drive, and plastic bumpers, where people stay in their houses until snowplows move the offending substance from their paths, too helpless to travel without AAA and chains and salt, clearing their windows with longhandled brushes while gently stepping around in the snow trying to stay nice and dry.
GmtGmt is offline   Reply With Quote
Old 07-24-2011, 08:20 PM   #2
80SPORT
Registered User
 
80SPORT's Avatar
 
Join Date: Mar 2008
Location: red deer alberta
Posts: 777
Re: 350 cui with a TH400?

If the motor is a 400 sbc it will have a section notched out of the harmonic balancer

TH350 tranny pan is basically square;Th400 is irregular
TH350 has cable kick down;Th400 is electric

400 engine was available w th350 or th400 ...as was 350

GVW and towing package determined trans choice....except all 454 were th400
80SPORT is offline   Reply With Quote
Old 07-24-2011, 08:50 PM   #3
b454rat
Senior Member
 
Join Date: May 2004
Location: Binghamton, NY
Posts: 3,460
Re: 350 cui with a TH400?

The tranny is a 400, but look at the balancer for the groove or run the numbers.
__________________
2000 GMC CCSB 454/4L80 6” lift SAS
1999 Chevy CCSB 454/NV4500 6” lift
1999 GMC Yukon 350/4L60 4" SAS
b454rat is offline   Reply With Quote
Old 07-24-2011, 09:17 PM   #4
Hubscrub
Cruzin
 
Hubscrub's Avatar
 
Join Date: Dec 2009
Location: on the road
Posts: 2,835
Re: 350 cui with a TH400?

there is also a gm 375 trans that is a cousin to the 400, the pan etc. is similar to the 400. The tail shaft is similar to a 350 turbo. I had one in a parts truck i thought it was a 400 until closer inspection.
__________________
Lime Wife's 67https://www.google.com/url?sa=t&rct=...wZEMODaS2d94u8

Back to the Fifties 59 https://www.google.com/url?sa=t&rct=...NAeStpydfrcj_U

Proverbs 3:5,6

"Thanks to the Interstate Highway System, it is now possible to travel across the country from coast to coast without seeing anything."Charles Kuralt

In memory of our first baby daughter, daddy and mommy love you.
Danica Grace 6/26/14
Hubscrub is offline   Reply With Quote
Old 07-24-2011, 10:23 PM   #5
b454rat
Senior Member
 
Join Date: May 2004
Location: Binghamton, NY
Posts: 3,460
Re: 350 cui with a TH400?

But they were in the 80s, not this style of truck. But anything is possible, this ones looks like it has early 80s manifolds on it.
__________________
2000 GMC CCSB 454/4L80 6” lift SAS
1999 Chevy CCSB 454/NV4500 6” lift
1999 GMC Yukon 350/4L60 4" SAS
b454rat is offline   Reply With Quote
Reply

Bookmarks


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 02:03 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com