In between 3 converters
I should have put Yank and Vig in the Poll but I totally forgot to add them... Thanks everyone for your input again and please keep the voting and posting up... Also, I want a locking converter so if your's doesn't lock up then please say so...
Chris
Ski
Dan
The Best V8 Stories One Small Block at Time
- Neal chance
- coan
- ATI
i wouldn't think you could go wrong with any of those converter companies. all of them have proven themselves over many years of kicking ***.
Seriously though, you mentioned you are using a TH400 and want lock-up. Sadly a TH400 does not have lock-up, it relies totaly on fluid to transfer all that power. Most guys on here will recommend a Vig or a Yank, they both utilize a billet front cover that not only increases strength, also allows a larger lock-up clutch to be used, but that is for the stock LS1 4L60E transmission. On a side note I also use a billet front cover on Circle D converters. For a TH400, a 3 speed transmission with no lock-up, Coan and Chance are definite performance proven contenders, used in many high HP cars. I also make TH400 converters as well, multiple options and custom built for you.
Give me a call or PM if you have any more questions.

Chris
Also I do know that Chuck from FLT(Finish Line Transmissions) formally of FLP has built these by doing a search here on LS1Tech. Search "Th400 lock up". There are a couple threads that I have read it in. The conversion is about $2000 from what I read.
Dan
Also I do know that Chuck from FLT(Finish Line Transmissions) formally of FLP has built these by doing a search here on LS1Tech. Search "Th400 lock up". There are a couple threads that I have read it in. The conversion is about $2000 from what I read.
Technically possible, using the variable pitch design for the fluid reversal, expensive and rare. For that amount I would just go with a 4L80 and get OD.
I like the way the fuddle is on the strip, hits hard. But its a little loose for the street.
the fuddle 3400 that i had felt more like a 3600-3800
the vig is a better street stall in my opinion. when I ordered the vig I ask for a convertor between 3400-3600. I think I have a 3200 it feels tight.
After I buy another daily driver I going back with fuddle and put a 4000 in the car. And let her rip













