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B&M Tork Master Torque Converters 20400

B&M 20400 - B&M Tork Master Torque Converters

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Torque Converter, Tork Master, 2,000 rpm Stall, Chevy, TH400/TH375/TH350/TH375B, Each

Estimated Ship Date: ...Loading Tuesday 5/26/2020
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  • Order this item and get free delivery and handling on your entire order! Offer excludes truck freight and oversize fees. Valid on orders shipped in the contiguous United States.

46 Customer Reviews for B&M 20400 - B&M Tork Master Torque Converters

Average Customer Review

5 Star

(36)

4 Star

(4)

3 Star

(1)

2 Star

(0)

1 Star

(5)

Results 1 - 10 of 46

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Great, Inexpensive Torque Convertor.......

Summit RacingSummit Racing Verified Purchase

BMM-20400
the stall speed is perfect for a mild camshaft usage.... It frees up the idle speed so it will feel very stable idling and you don't feel that torque convertor slip like in the higher stall speed convertors..... I'm VERY happy with this convertor! ! ! !

3 of 3 found this review helpful.

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Reviewer: from IL

Date: May 21, 2017

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Warning, not for 400 small blocks!

Summit RacingSummit Racing Verified Purchase

BMM-20400
This product does not fit on Pontiac 400 engines with a large flywheel, despite what the application guide says! I ordered this torque converter for my 1970 Grand Prix which has a 400 small block, but the bolt diameter on the torque converter was smaller than my stock flywheel, even though the application guide said it would fit my car. The converter fit into my TH400 perfectly, but couldn't bolt to my flywheel, so unless you have an aftermarket flywheel with the dual bolt patterns, proceed with caution. Otherwise, the product seemed to be of decent quality, although it's worth mentioning that the paint used seems to be of low quality as some of it had already peeled of when I opened the package. Also, the raised center of the torque converter where it fits into the center of the flywheel is a slightly different shape than the casting on my stock TH400 converter. This could possibly be an issue if you plan to use a washer to shim the converter off the flywheel. However, as stated, the product seemed to be well made internally and fit perfectly on the input shaft of my transmission. ...read more

3 of 9 found this review helpful.

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Reviewer: from CA

Date: November 14, 2014

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Performs excellent

Summit RacingSummit Racing Verified Purchase

BMM-20400
Recently installed this converter in my 71 C-10 with TH350 trans paired with the B&M 20230 flex plate. Installation was perfect. I like they have the anchor fixed in the converter. Simply screw the bolt in torque and you’re done. Performance increase was incredible. I was running a stock converter, with this 2000 stall holding the truck at a stop light is by far easier. And having the engine build RPM’s from takeoff give the truck an entire different feel. I wish I would have installed this years ago. ...read more

2 of 2 found this review helpful.

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Reviewer: from VA

Date: January 26, 2019

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Replaced stock TC on TH400

Summit RacingSummit Racing Verified Purchase

BMM-20400
I SBC has a mild Summit cam and 4BBL Carter 1406 carb not to mention a few other improvements and the stock TC caused the idle speed to drop from whatever it was set at in park or neutral (750, 850, 1000 even) to 500 rpm. The tranny is a TH400. This new Summit TC bolted right up, after I ordered the matching flex plate. Now the truck runs perfect. ...read more

1 of 1 found this review helpful.

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Reviewer: from WA

Date: August 05, 2019

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2000 stall

Summit RacingSummit Racing Verified Purchase

BMM-20400
Stalls too 2000 rpm just like the info said

1 of 1 found this review helpful.

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Reviewer: from CA

Date: July 01, 2019

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Works great

Summit RacingSummit Racing Verified Purchase

BMM-20400
The cheap converters that advertise 1800 to 2200 stall speed and actually stall at 1600 are junk. B and M advertises 2000 on this converter and it actually stalls at 2000. I have a 350 with a small cam and it stalls just likd B and M advertises.

1 of 1 found this review helpful.

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Reviewer: from TN

Date: May 01, 2019

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Worked great!

Summit RacingSummit Racing Verified Purchase

BMM-20400
My 1985 Chevy G20 (daily driver) needed a new transmission. I picked up a rebuilt one and since the van came originally with a garbage lock up one, I ditched it in favor of the time tested B&M. The new converter says it has a 2,000 rpm stall speed, but it "creeps" nice and easy in traffic and has almost stocklike street manners. Even with the motor being equipped with a cam, intake, carb, headers, etc the converter moves my heavy van with ease.I have put about 800 miles on it so far and it works perfectly. It also came with the bolts, and a new seal. ...read more

1 of 1 found this review helpful.

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Reviewer: from MA

Date: July 08, 2017

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Great Torque Converter!

Summit RacingSummit Racing Verified Purchase

BMM-20400
What a difference this Torque Converter makes, the performance difference from the old stock one (that failed) is very noticeable. As usual, Summit shipping was very fast and I was back on the road in no time. (shipped from OH and I am in MI - arrived next day) Thanks Summit!

1 of 1 found this review helpful.

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Reviewer: from MI

Date: August 31, 2016

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B&m torque converter

Summit RacingSummit Racing Verified Purchase

BMM-20400
This is junk looked like it came from a junk yard put this in my car had no stall at all factory converter was much better when I took it out drained fluid out to return it was full of metal shavings and also some chunks of rust fell out. I put this in a nearly new transmission only drove it about 3 miles hope it hasn’t ruined my transmission. This had never been cleaned painted over dirt so don’t buy this junk ...read more

1 of 2 found this review helpful.

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Reviewer: from KY

Date: April 16, 2019

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B&M Torque Converter

Summit RacingSummit Racing Verified Purchase

BMM-20400
I have purchase several of these converters for various cars over the years and I have never been disappointed. They work well and I never experienced any issues with them. They have been a leader in the field for decades, I will buy their products again.

0 of 0 found this review helpful.

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Reviewer: from MN

Date: May 17, 2020

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Some parts are not legal for use in California or other states with similar laws / regulations

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