Rat Rods Rule / Undead Sleds - Hot Rods, Rat Rods, Beaters & Bikes... since 2007!

Go Back   Rat Rods Rule / Undead Sleds - Hot Rods, Rat Rods, Beaters & Bikes... since 2007! > Transmission, Rear End... Talk & Q&A!

Transmission, Rear End... Talk & Q&A! Tranny, rear end, drivetrain related stuff... shift it... grind it... pop da clutch!

Reply
 
Thread Tools Display Modes
  #1  
Old 06-30-2017, 07:47 AM
von-zipper's Avatar
von-zipper von-zipper is offline
Super Member
 
Join Date: Nov 2011
Posts: 295
Default Will a Buick TH400 bolt up to a SBC?

I've seen different answers for this, anyone know?

Zipper
Reply With Quote
  #2  
Old 06-30-2017, 08:45 AM
Old Iron's Avatar
Old Iron Old Iron is offline
Rusty Rat Rodder
 
Join Date: May 2011
Location: Willard Mo.
Posts: 10,022
Default

If it's one of the universal trannies that GM built.
Usually in the mid 80's cars like this one.


Speedway sells this adapter for $39.99
I've used it several times and it works great.
Reply With Quote
  #3  
Old 06-30-2017, 08:49 AM
von-zipper's Avatar
von-zipper von-zipper is offline
Super Member
 
Join Date: Nov 2011
Posts: 295
Default

Quote:
Originally Posted by Old Iron View Post
If it's one of the universal trannies that GM built.
Usually in the mid 80's cars like this one.
Iron, didn't see the adapter first time I saw your post! Thanks, that's what I'm going to use!

Zipper

Last edited by von-zipper; 06-30-2017 at 02:16 PM.
Reply With Quote
  #4  
Old 06-30-2017, 03:12 PM
26Troadster's Avatar
26Troadster 26Troadster is offline
Rusty Rat Rodder
 
Join Date: May 2007
Posts: 3,390
Default

the trans will line up with the dowels and bolt up with 2 bolts other then that no. i have never seen a dual pattern th400, not saying they don't make one just i never seen one.
Reply With Quote
  #5  
Old 06-30-2017, 05:04 PM
Old Iron's Avatar
Old Iron Old Iron is offline
Rusty Rat Rodder
 
Join Date: May 2011
Location: Willard Mo.
Posts: 10,022
Default

Quote:
Originally Posted by 26Troadster View Post
the trans will line up with the dowels and bolt up with 2 bolts other then that no. i have never seen a dual pattern th400, not saying they don't make one just i never seen one.
Yea I was locked in on a TH350 didn't read well enough.
The adapter will work with any GM tranny.
Reply With Quote
  #6  
Old 06-30-2017, 09:29 PM
TIMOTHALE TIMOTHALE is offline
Senior Member
 
Join Date: Dec 2012
Location: near yelloystone park
Posts: 179
Default Nailhead ??

Nailhead buicks used the TH , But the nailheads trans has a shorter belhousing part of the case. Nailheads have an extended bell as part of the engine block. and buick nailheads found they way into Jags, rolls and other euro cars.
Reply With Quote
  #7  
Old 06-30-2017, 11:21 PM
Bamamav's Avatar
Bamamav Bamamav is offline
Rusty Rat Rodder
 
Join Date: Mar 2012
Location: Berry, Alabama
Posts: 4,158
Default

I think you are thinking about the so called "baby nailhead", the aluminum block 215 V8. The tooling for it was indeed sold to Rover in England and with a few changes used for years in their vehicles. Don't think Jag ever used it, or Rolls, they had their own engines. It wasn't really in the nailhead family, but it was a similar design and might have shared a few parts, but not many.

I think the only TH used on the real nailhead was the TH 400. Don't think they ever got the TH 350. I've never ran across a TH 400 with a BOP {BUICK, OLDS, PONTIAC} and Chevy pattern both, but they may have made them and I just never saw one. I have seen the TH 350 dual pattern ones however. I think they came about in the late 70's-early 80's when GM was doing away with branded engines, They used up what supply they had built then started putting "corporate" engines in, which was the small block Chevy. My Grandma had a Buick with a Chevy 350 in it. By changing the trans and going to the dual pattern, they didn't have to keep making transmissions to match the other bolt patterns, BOP in particular. For a while, you still had the option on the branded engine or the corporate engine, but it wasn't widely known or advertised, and when some owners found out their Buicks and Pontiacs had Chevy engines, they sued GM for some big bucks.
Reply With Quote
  #8  
Old 07-01-2017, 07:38 AM
TIMOTHALE TIMOTHALE is offline
Senior Member
 
Join Date: Dec 2012
Location: near yelloystone park
Posts: 179
Default Nailhead Th

We have a non running Jag in the driveway that is donor for the suspension for my step son's rat 46 chevy pickup . The Jag has the th 400 or sometimes called sp 400. I haven't decided if I will use it behind my 401 that has the dyna behind it right now. ony a few years nailers used the th 400.
Reply With Quote
  #9  
Old 07-01-2017, 05:04 PM
wjcgasser wjcgasser is offline
Member
 
Join Date: Dec 2015
Posts: 71
Default

The sp400 has the variable pitch converter. Put one in my 53 Chevy with 500 caddy engine had to find a bop tranny case that had to be early 70 to work
Reply With Quote
  #10  
Old 07-03-2017, 01:01 PM
26Troadster's Avatar
26Troadster 26Troadster is offline
Rusty Rat Rodder
 
Join Date: May 2007
Posts: 3,390
Default

If i remember right the bop th350 and th400 will not bolt up behind a nailhead. a adaptor is made but it uses a chevrolet trans in that setup. Cost too much for my projects.
Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

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



All times are GMT -5. The time now is 05:31 PM.


Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2018, vBulletin Solutions, Inc.
Rat Rods Rule Inc.