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1965-91 GM TH400 Performance Torque Converter, 2700-3000 Stall

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Specs
Torque Converter Bolt Circle:
11.5"
Diameter:
10.0
1965-91 GM TH400 Performance Torque Converter, 2700-3000 Stall

Click image to enlarge

Details

Reviews (4)

Q & A (2)

What's in the Box

Info

Races are won or lost at the starting line, so make sure you come out ahead with a High Performance Turbo 400 Torque Converter. Whether you are looking for a street, strip, racing, or just plain heavy duty converter, these units will deliver lasting performance in your GM TH400 (with 11-1/2" bolt circle). With features like welded internals, oversized bearings, and hardened hubs, you can rest assured that these torque converters are of the highest quality possible.

  • 2700-3000 stall - 10" diameter 
  • 1965-91 GM TH400 transmission- 11-1/2" bolt circle

All stall ranges will vary depending on the engine setup, vehicle weight, and gear ratios.

High stall converters are designed for S/B or B/B cars with performance camshafts and high ratio rear end gears (3.55-3.73 minimum).

Made in the U.S.A.

To learn about how torque converters work and what to consider when purchasing one, check out our tech article. Choosing the Right Torque Converter. 

Item Details

Mildly modified S/B or B/B cars with high rise dual plane intake with 300-400 ft lbs torque, weighing 2900-3400 lbs. Cam adv lift around .500" with 3.55-3.73 gears, 10" diameter
These make use of 3/8"-16 bolts.

Notes

  1. All advertised stall ranges will vary depending on your engine's setup and the weight of your vehicle. If your car is heavier than the recommendation, the stall speed will be higher. If the car is lighter, stall speed will be at a lower RPM.

Specs

  • Hardened Hub
    • Increased durability through the allowance of tighter tolerances and clean fit with transmission seals
  • Welded Impeller
    • Stronger pump fins to maintain stall speed over the life of the converter
  • Heavy-Duty Stators
    • Heat treated fins, sprag and race designed to efficiently handle high power loads
    • Stator fins are formed, not cut - cut stators can cause severe slippage
    • Rapidly dissipates heat - more power to the wheels
  • Welded Turbines
    • Pre-stressed before welding - more rigid construction
    • Heat treated splines
  • Aluminum Spacers
    • Incorporates aircraft quality aluminum spacers which handle higher loads than fiber spacers found in standard converters
  • Oversized Bearings
    • High strength stamped bearings absorb shock and extreme abuse better than standard waffle bearings
  • High Tech Welds
    • Positive-charged, military grade MIG welds for complete fusion of the metal

Customer Reviews

Rated 5 out of 5 by 4 reviewers.
RATING BREAKDOWN
4 reviews
5 Stars
4
4 Stars
0
3 Stars
0
2 Stars
0
1 Star
0
RECOMMEND THIS PRODUCT:

Mentalward
Verified Purchaser
Verified Reviewer
Columbus Ohio

Best Price Found

August 30, 2016
Defiantly was the best choice for my cruzer
Pros:
  • Works Just As Good
  • Looks Well Built
Yes, I recommend this product.
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Was this review helpful? 0 0

crisco
Verified Purchaser
Verified Reviewer
hollywood fl

real nice converter

September 25, 2015
put it in my 65 c10 383 race motor awesome
Pros:
  • High
Cons:
  • Too High
Yes, I recommend this product.
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Was this review helpful? 0 0

Big b
Verified Purchaser
Paris ly

Torque converter works great ️️out standing performance

July 28, 2015
I use the product daily is street driven works great
Yes, I recommend this product.
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T's 65 Chevelle
Omaha, Ne

EXCELLENT CONVERTER!

December 07, 2010
what a great converter for the money! Performance is key when building a street car. This converter is exactly what I need and is really what works for my Big block 396 with a TH400.
Yes, I recommend this product.
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Product Q&A

2 questions : 2 answers

1 answers

will this converter allow my idle rpm to stay the same when i go from park to drive 350 sbc, 10:1 compression, comp cam 12-601-4, single 4 tunnel ram, 4:10 gear, turbo 400 ? thanks

banksy
Moore, OK, USA
November 04, 2014

will this converter allow my idle rpm to stay the same when i go from park to drive 350 sbc, 10:1 compression, comp cam 12-601-4, single 4 tunnel ram, 4:10 gear, turbo 400 ? thanks

Answers

November 05, 2014
EricM
The torque converter will certainly help your situation but the torque converter most likely not the entire cause. You idle RPM will never stay exactly the same once you put the vehicle in gear, it will always pull down at least a couple hundred RPM. From the sounds of your issues I have a very good bet that your carburetors need some adjustment. Tunnel ram intake manifolds make this sort of issue very tricky to fine tune. Find a good carburetor tuner local to you and have them adjust your carburetors as well after installing this torque converter and you should be all set.
1 answers

i have a 1971 chevelle with a 461 bbc in it, its around 9.5 to 1 compression with a 280 duration comp cam and 373 gears. im curious how this convertor will work at highway speeds, do they "freewheel" when your rpm is less than stall speed or will it stay engaged? my car is used as a road car quite often but want a little more aggressive take off without doing rearend gears thanks

frank the tank
gillette, wyoming
July 07, 2015

i have a 1971 chevelle with a 461 bbc in it, its around 9.5 to 1 compression with a 280 duration comp cam and 373 gears. im curious how this convertor will work at highway speeds, do they "freewheel" when your rpm is less than stall speed or will it stay engaged? my car is used as a road car quite often but want a little more aggressive take off without doing rearend gears thanks

Answers

July 07, 2015
Craig
Expert
It will depend on what your cruising speed is. Since this torque converter locks up between 2700 and 3000 rpm if your cruising speed is less than that then the torque converter will always be slipping and not lock up. You always want to match the converter to the power band of your cam shaft. With a 280 duration cam you should not need more than the 2200-2600 stall converter part # 109614.
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