torque converter
Pro
Joined: Nov 2009
Posts: 684
Likes: 0
From: Alberta
Last edited by 10caipirinhas; Mar 13, 2010 at 02:52 PM.
Le Mans Master
Joined: Oct 2006
Posts: 7,123
Likes: 433
From: Gladstone MO
C3 of Year Finalist (appearance mods) 2019
A TH350 convertor will fit a TH400. Gives you a little higher stall, and way less cash than an aftermarket convertor. Problem is you never really know how much more stall you'll get. (it won't be less!)
Most 350 convertors have been rebuilt so many times by who knows how many people you never really know if they went in and replaced all the parts or just built one out of spare parts. And did they tweak all the vanes to spec or slap them together? But that's also pretty true of most aftermarket convertors too.
A cooler is never a bad idea- for anything that is going to get used hard. GM added them on trucks that were going to be towing.
Most 350 convertors have been rebuilt so many times by who knows how many people you never really know if they went in and replaced all the parts or just built one out of spare parts. And did they tweak all the vanes to spec or slap them together? But that's also pretty true of most aftermarket convertors too.
A cooler is never a bad idea- for anything that is going to get used hard. GM added them on trucks that were going to be towing.
Team Owner
Joined: Jan 2006
Posts: 37,637
Likes: 3,114
From: Crossville TN
If you are going to buy a converter, call the converter techs and let them spec one for you. Why would you get advice from folks who know nothing about your car? The techs will ask you all the right questions, take the data they need, and come back with the right converter for your engine/tranny and your driving habits. Just pick a good name brand [for God's sake, don't buy a converter at a local auto parts store 
], and let them do the work.
], and let them do the work.
Burning Brakes
Joined: Sep 2005
Posts: 895
Likes: 4
From: whitman massachusetts
Converter
Make sure you know what your existing converter bolt pattern is. Not all TH350 and TH400 converters are interchangeable. GM used two different bolt patterns, 10.75" and 11.50", so it is dependent on what flywheel you have.
Thread Starter
Instructor
Joined: Nov 2009
Posts: 190
Likes: 0
help
this is true, but I like to be able to know a little before I call, and was wondering who to call. I know nothing and have no experience when it comes to TQ conv. This is always a good place for advice and a general direction, yourself included.... thanks for the help. 
If you are going to buy a converter, call the converter techs and let them spec one for you. Why would you get advice from folks who know nothing about your car? The techs will ask you all the right questions, take the data they need, and come back with the right converter for your engine/tranny and your driving habits. Just pick a good name brand [for God's sake, don't buy a converter at a local auto parts store ], and let them do the work.
], and let them do the work.Corvette Stories
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Safety Car
Joined: Mar 2009
Posts: 3,558
Likes: 4
From: Oakland California
If you are going to buy a converter, call the converter techs and let them spec one for you. Why would you get advice from folks who know nothing about your car? The techs will ask you all the right questions, take the data they need, and come back with the right converter for your engine/tranny and your driving habits. Just pick a good name brand [for God's sake, don't buy a converter at a local auto parts store ], and let them do the work.
], and let them do the work.
And make sure you add a good transmission oil cooler of you want the tranny to last
.
Thread Starter
Instructor
Joined: Nov 2009
Posts: 190
Likes: 0
trans cooler
I have a new 3 core alum rad with two 12" 1365 cfm spal electric fans.
Will I need a seperate trans cooler with this set up, if so which do you recommend?
btw, I live in hot south florida
Will I need a seperate trans cooler with this set up, if so which do you recommend?
btw, I live in hot south florida
Safety Car
Joined: Aug 2001
Posts: 3,892
Likes: 13
From: Pettis Performance 565 with two stages of Nitrous Supply nitrous 1.082, 4.61 at 155, 7.17 at 192
I told Andre I wanted to go through the traps at 7500 rpms at 180 mph. Data logger says finish line rpms are between 7496 and less than 7600. He hit it right on the head, first try.
His street converters are less money than his race versions like mine.
Thread Starter
Instructor
Joined: Nov 2009
Posts: 190
Likes: 0
TCI Tech
I called TCI and he said to go with the Sat. Night Special, it is about 200rpm over stock
I will call B&M and Hughs tomorrow and see what they say
I will call B&M and Hughs tomorrow and see what they say
If you are going to buy a converter, call the converter techs and let them spec one for you. Why would you get advice from folks who know nothing about your car? The techs will ask you all the right questions, take the data they need, and come back with the right converter for your engine/tranny and your driving habits. Just pick a good name brand [for God's sake, don't buy a converter at a local auto parts store ], and let them do the work.
], and let them do the work.