Automatic Transmission 2-Speed thru 10-Speed GM Autos | Converters | Shift Kits
Sponsored by:
Sponsored by:

Building a TH400.. What's needed?

Thread Tools
 
Search this Thread
 
Old Aug 29, 2009 | 02:56 PM
  #1  
CamaroKidZ28's Avatar
Thread Starter
TECH Apprentice
15 Year Member
 
Joined: Jun 2007
Posts: 362
Likes: 2
Default Building a TH400.. What's needed?

Motor made 610/620 crank, and down the line may be sprayed with a 150 shot. Now onto the tranny..

Currently it is a "stock" TH400 with a 2500 converter in it. What parts should be upgraded? I've been told I need to put in a stronger sprag, a bigger convertor would gain a lot, and that it'd be awesome to add a T-Brake and RMVB

Any input? And if you know, how much are these things and would I be able to install them never seeing the inside of an automatic transmission before.

Thanks fellas, you guys always have good input.
Reply
Old Aug 29, 2009 | 05:56 PM
  #2  
TurboAv's Avatar
TECH Fanatic
iTrader: (6)
 
Joined: Oct 2005
Posts: 1,455
Likes: 1
From: Tonopah, AZ
Default

Hit up Greg at FTI. I love my TH400 and converter he built for me.
Reply
Old Aug 29, 2009 | 05:57 PM
  #3  
CamaroKidZ28's Avatar
Thread Starter
TECH Apprentice
15 Year Member
 
Joined: Jun 2007
Posts: 362
Likes: 2
Default

Originally Posted by TurboAv
Hit up Greg at FTI. I love my TH400 and converter he built for me.
How expensive was it? The car is a street/strip car and I drive it 3-4 times a week currently
Reply
Old Feb 4, 2010 | 05:37 AM
  #4  
CamaroKidZ28's Avatar
Thread Starter
TECH Apprentice
15 Year Member
 
Joined: Jun 2007
Posts: 362
Likes: 2
Default

One more question. Trans currently has a Holeshot converter.. about 1/4 the price of a good one.. How do I know if it's slipping too much or how much it's holding me back?
Reply
Old Feb 4, 2010 | 08:57 AM
  #5  
slow67's Avatar
Gingervitis Addict
15 Year Member
iTrader: (2)
 
Joined: Nov 2004
Posts: 2,399
Likes: 3
From: DFW
Default

All the stock hard parts should be good for that power. Just takes the right build.
Reply
Old Feb 5, 2010 | 08:17 PM
  #6  
FTICONVERTERS's Avatar
LS1Tech Sponsor
15 Year Member
Liked
Loved
Community Favorite
iTrader: (3)
 
Joined: Aug 2007
Posts: 1,376
Likes: 96
From: Deland, FL
Default

Camaro,
give me a shout at 1-866-726-8358 and we will go over everything that you would need according to your plans with the car and i will give you a quote.

thanks,
Greg
__________________
FTI COMPETITION CONVERTERS AND TRANSMISSIONS
"IT'S NOT CHEATING, IT'S THE COMPETITIVE EDGE."
1-866-726-8358
info@ftiperformance.com
FTIPerformance.com
FTI Converter build sheet

Reply




All times are GMT -5. The time now is 07:32 PM.

story-0
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-1
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-2
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-3
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-4
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-5
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-6
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE
story-7
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-8
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-9
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE