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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

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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.

Brand: B&M

Manufacturer's Part Number: 20400

Part Type: Torque Converters

Product Line: B&M Tork Master Torque Converters

Summit Racing Part Number: BMM-20400

UPC: 019695204006

Anti-Ballooning Plate: No

Lockup Compatible: No

Furnace-Brazed: No

Balanced: Yes

Mounting Hardware Included: Yes

Torque Converter Stall Note: Actual stall speed may differ due to engine combination, gear selection, and vehicle weight.

Quantity: Sold individually.

Notes: This torque converter requires a small 10.75 in. bolt pattern flexplate.

In-Store Pickup: Choose In-store pick-up (OH, NV, GA, TX) on our web site.

Tork Master converters are B&M's most affordable performance torque converters. They feature precision pump drive tubes and are pressure tested, fully balanced, and ready to install. The Tork Masters are excellent all-around performance street converters. They are not recommended for big block or supercharged applications.

Warranty

Questions & Answers Ask a Product Question
Q:

Would this work with the stock 12.75 inch flex plate on a 350 sbc crate motor?

Asked by GARRETT on February 22, 2018

A:

I recommend installing a new flexplate on your engine...standard plate...168 teeth.

MICKY from GA answered on February 26, 2018

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Q:

what size bolts does this product require

Asked by AARON on September 14, 2019

A:

Thank you for your question. BMM-20400 torque converter includes 7/16-20 in. mounting hardware bolts. ARP 230-7303 is set of fasteners that will work if new bolts are needed.

Summit RacingSummit Racing Answer - September 16, 2019

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Q:

Will still be able to tow my boat with this converter in my truck.
1971 c10 350ci th350

Asked by DAVID on May 10, 2019

A:

Perfect puts more power to the ground

MILTON from TN answered on May 11, 2019

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Q:

I have a 1985 gmc half ton truck with a 350 motor with a edelbrock 650 avs2 carburetor edelbrock performer rpm intake and an edelbrock performer cam and lifter kit. my transmission is a th350 non lock up with a b&m shift kit on the street and strip setting and I'm wandering if this stall coverter will give me a better launch of the line.

Asked by SCOTT on March 04, 2018

A:

Yes it will. I the same set up on my 327 with this same converter and it gets off real quick
Maybe one we’ll meet sidebyside and test them both out
It’s worth the buy.

THOMAS from CA answered on March 06, 2018

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Most Helpful Reviews Review This Product

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)

+See All 46 Reviews

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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Quality

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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Quality

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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Quality

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

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