Circle D – GM HP Series 10L90 Torque Converter
$2,549.00
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- CFD Designed 5th Axis CNC Machined Billet Stator
- Hand TIG Welding Throughout
- Impeller Fin Recallibration
- Custom CDS Internal Clearances
- Torrington Style Bearings
- *Pro Series Option Recommended for Applications over 850hp*
(Most converters are built-to-order; current lead time is around 3-4 weeks)
Frequently Purchased Together
LT1
2016-2022 Camaro (6th Gen)
Varies Based on Options
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OEM Style – Exhaust Manifold Gaskets for Gen 5 LT Engines (12657093)
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Camshafts & Valvetrain
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This product has multiple variants. The options may be chosen on the product page
Camshafts & Valvetrain
$89.00
This product has multiple variants. The options may be chosen on the product page
Camshafts & Valvetrain
$169.99
This product has multiple variants. The options may be chosen on the product page
Description
This is an excellent choice for your 2017+ Camaro ZL1 and 2018+ GM 10L90 equipped vehicle! This converter is based off the original factory converter paired with our CNC’ed Billet Stator and Impeller modifications. We have options available to accommodate a wide variety of engine, power-adder, and vehicle setups while retaining street-ability.
*RECOMMENDED FOR APPLICATIONS UP TO 750HP*
- CFD Designed 5th Axis CNC Machined Billet Stator
- Hand TIG Welding Throughout
- Impeller Fin Recallibration
- Custom CDS Internal Clearances
- Torrington Style Bearings
- *Pro Series Option Recommended for Applications over 850hp*
Questions & Answers (25)
Customer questions & answers
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What is the biggest stall I can run with the ss2 ?? I might upgrade to a bigger cam later down in the future
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Q What is the biggest stall I can run with the ss2 ?? I might upgrade to a bigger cam later down in...... Read more answer nowAsked by on May 13, 2026 3:20 pmA There isn't a limit you can run as loose of a converter as you'd like
Hello is this a triple or single ?
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A MultidiscA It is a single, Circle D themselves told me so. Do yourselves a favor and just get the pro series, unless you wanna be like me and have to pull it out and put the pro series in. My car makes around 560-600whp NA and it will not hold WOT lock up.
For a 2020 2SS 10 speed with the GPI NFC camshaft and ported heads and high ram on E85 what stall speed is the best option?
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Q For a 2020 2SS 10 speed with the GPI NFC camshaft and ported heads and high ram on E85 what stall...... Read more answer nowAsked by on September 23, 2025 9:11 amA 4000+
I have a 2021 camaro lt1 10 speed. Im gonna be putting your crazy cam kit in it with a high ram set up. What comverter would you recommend?
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Q I have a 2021 camaro lt1 10 speed. Im gonna be putting your crazy cam kit in it with a high ram s...... Read more answer nowAsked by on July 31, 2025 3:49 amA The 42-4400 stall speed
Will it fit a 2022 Whippled L84 Tahoe with a 10L80?
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A I'm uncertain on that application since we haven't installed one for your vehicle before, I would reach out to Circle D and ask them for clarification
I ordered a 4400 through Tyrone on May 15th, still waiting no updates. Is this how long it usually takes?
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Q I ordered a 4400 through Tyrone on May 15th, still waiting no updates. Is this how long it usuall...... Read more answer nowAsked by on June 26, 2025 7:41 pmA Contact support@gwatneyperformance.com
MYCAMARO IS A 20182SS AUTO W/E85, BMR BARS, FILTER, THERMOSTAT, TUNNING WITH 432 HP . WICH CIRCLED YOU RECOMMEND CAR IS DOING NOW 1.71 60 FEET. 11.71 1/4 MILE
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Q MYCAMARO IS A 20182SS AUTO W/E85, BMR BARS, FILTER, THERMOSTAT, TUNNING WITH 432 HP . WICH CIRCLE...... Read more answer nowAsked by on May 21, 2025 8:18 pmA This is for a 10 speed you have a 8 speed, we need more details from you contact us at support@gwatneyperformance.com
Hi my stock torque converter is bad now I'm planning to install the ss3 cam on it but my question is if I install this 3600+ converter now I can drive it for couple months until I install the ss3 cam or it can be a problem driving with a big torque converter
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Q Hi my stock torque converter is bad now I'm planning to install the ss3 cam on it but my question...... Read more answer nowAsked by on December 28, 2024 12:40 pmA You can drive your car with just the converter without the cam but you'll need to have the car tuned for the converter
What converter will work for a 2012 camaro 2ss automatic L99
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Q What converter will work for a 2012 camaro 2ss automatic L99 answer nowAsked by on November 16, 2024 11:15 amA You'll need to select one from this page https://gwatneyperformance.com/product/circle-d-6l8090-pro-series-multi-disk/
I have a BTR 225 Cam, FBO E85 10 Speed SS, what stall speed would be best?
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Q I have a BTR 225 Cam, FBO E85 10 Speed SS, what stall speed would be best? answer nowAsked by on September 26, 2024 10:46 amA I would see what btr recommends for that cam but my guess would be a 3600+
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Brandon Hill guided me the whole way through. That man always on it and fast replies. I’m 100% happy
Circle D best in the business !
The Converter works well it’s not installed but my friend has one and literally dropped one second et
I haven’t received the product yet but I’m quite certain it will be great
Great product and price point.