Circle D Specialties

Circle D Specialties Circle D Specialties' mission is to make exceptional torque converters while providing unparalleled customer service. Our Performance Moves Us!
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Circle D Specialties' mission is to make exceptional torque converters while providing unparalleled knowledge and outstanding customer service. We are driven to continually improve and raise the bar with our products, relentlessly pursuing perfection. We are a team, we are family, we are Circle D Specialties.

means it's time to recognize & congratulate some more of our great customers!! 🥳🏆Bryant Travis - I-29 Dragway Radial C...
08/26/2026

means it's time to recognize & congratulate some more of our great customers!! 🥳

🏆Bryant Travis - I-29 Dragway Radial Class winner - Pro Series 252mm billet bolt-together spragless torque converter

🏆Rodney Blackburn - Backside Brawl At Mid America Dragway N/A winner - Pro Series 252mm billet bolt-together spragless torque converter

🏆Jeff Mass - Onawa Dragway 6.50 Index winner - Pro Series 245mm billet welded spragless torque converter

🏆Jeff Mass - I-29 Dragway Street Car winner - Pro Series 245mm billet welded spragless torque converter

🏆Joe Meathrell - NPBRA North Vs. South Elite Street winner - Pro Series 252mm billet bolt-together spragless torque converter

🏆Mike Corley - War At 304 True Street winner - Pro Series 264mm billet bolt-together spragless torque converter

🏆Justin Machacek - Eddyville Raceway Park Door Slammer Series winner - Pro Series 252mm billet bolt-together torque converter

🏆Tom Kuepper - Sick Michigan Miles Quickest Ford with a 5.40 average as well as a new PB 5.177 run at 134.50 MPH - Pro Series 252mm billet bolt-together spragless torque converter

🏆Andy Holleman - K Town Cash Days winner - Pro Series 252mm billet bolt-together spragless torque converter

🏆Corey James Ford - King Of The Hollar winner - Pro Series 252mm billet bolt-together spragless torque converter

🏆Fred Firsching - Mexico Streets winner - Pro Series 252mm billet bolt-together spragless torque converter

Congrats to y'all on the wins!! Thank you so much for your business & your support of Circle D Specialties!!

If you're looking for a little to get your week going then look no further than the blistering new PB 3.78 run at 203 ...
08/24/2026

If you're looking for a little to get your week going then look no further than the blistering new PB 3.78 run at 203 MPH by Nick Duda!! 🚀🚀🇨🇦🇨🇦

Making this run all the more impressive is the fact that he did it with an all cast small block Chevrolet engine with conventional 23-degree cylinder heads! 🤯

▪️Dart cast iron block / 9.025" deck height / 4.400" bore space
▪️AFR cast aluminum 220cc 23-degree cylinder heads
▪️Edelbrock Victor E 4150 EFI cast aluminum intake manifold

Nick's engine combo even still sports a set of stud-mount rocker arms and is under 400ci of displacement, too! 👀

We have Nick's Corvette set up with one of our Pro Series 264mm billet bolt-together spragless non-lock-up torque converters featuring our proprietary CFD-modeled 5-axis CNC-machined billet steel airfoil stator technology. 😎

📢S/O to the following customers on this !📢🏆Larry Houck II - King Of Columbus Small Tire winner - Pro Series 264mm bille...
08/19/2026

📢S/O to the following customers on this !📢

🏆Larry Houck II - King Of Columbus Small Tire winner - Pro Series 264mm billet bolt-together spragless torque converter

🏆Dave Kelly & Cliff Thompson - 4.80 Index winner - Pro Series 264mm billet bolt-together spragless torque converter

🏆Guy King - Jambo 10.5 Modified 10.5 winner + first car to ever run a 6-second pass in the Modified 10.5 class - Pro Series 252mm billet bolt-together spragless torque converter

🏆Clint Stoneham - Horsepower Hustle Small Tire winner - Pro Series 252mm billet bolt-together spragless torque converter

🏆Joey Hiykel - Titans Of 10.5 8.5/235 winner + new PB on 26 x 8.5's/235's with a 4.3552 run at 177.24 MPH - Pro Series 264mm billet bolt-together spragless torque converter

🏆Joey Hiykel - I-29 Dragway Heads Up Small Tire winner - Pro Series 264mm billet bolt-together spragless torque converter

🏆Dan Murcheck - Wisconsin Outlaws Mean Street winner - Pro Series 252mm billet bolt-together spragless torque converter

🏆Nick & David Diehl - Motortrend Roadkill Nights Small Tire winner - Pro Series 264mm billet bolt-together spragless torque converter

🏆Chase & Cameron Davis - US 60 Dragway Extreme Radial Series Limited 275 winner + new Gen-V LT record with a 4.1396 run at 173.88 MPH - Pro Series 264mm billet bolt-together spragless torque converter

🏆 Alexis Zarate - Doomsday No Prep Shootout True Street winner - Pro Series 264mm billet bolt-together spragless torque converter

🏆Chase Womack - Doomsday No Prep Shootout Small Tire winner - Pro Series 264mm billet bolt-together spragless torque converter

🏆Justin Gossard - Street Car Takeover Back Side winner - Pro Series 252mm billet bolt-together spragless torque converter

The website may be new, but our focus remains the same: building high-performance torque converters with the quality, pr...
08/17/2026

The website may be new, but our focus remains the same: building high-performance torque converters with the quality, precision, and confidence you expect from Circle D Specialties.

Visit circleDSpecialties.com and explore the new site!

Where passion meets performance.

08/13/2026

🌴
NEW DROP: GRAND THEFT TORQUE T-SHIRT
🌴
Whether you’re at the track, in the shop, at a car show, or just representing Circle D wherever you go, the Grand Theft Torque Tee is made for those who know that torque is king of the streets.

Ready to add one to your collection?
Shop the Grand Theft Torque T-Shirt on our website, and represent Circle D Specialties in style! Link below

https://www.circledspecialties.com/collections/gear/products/grand-theft-torque

08/13/2026

196 MPH on a 28 x 10.5 slick with a turbo LS?!! 🤯🚀

Brian Tooley Racing & the Tin Soldier Racecars crew getting it DONE in Brian's exceptionally rowdy small tire Corvette!! 💪🏼

Proud to have our Pro Series 264mm billet bolt-together spragless lock-up 400 torque converter on board this beast!

As with all of our 264's we have Brian set up with our unique CFD-modeled 5-axis CNC-machined billet steel airfoil stator technology. 😎

This has us congratulating the following customers on event wins while using our torque converter products:🏆Justin Gal...
08/05/2026

This has us congratulating the following customers on event wins while using our torque converter products:

🏆Justin Gallant - Door Warz 14 Outlaw 275 winner & new track record 4.14 run at 177 MPH - Pro Series 252mm billet bolt-together spragless torque converter

🏆Nick Duda - Door Warz 14 Pro Mod winner & new PB 3.80 run at 199 MPH - Pro Series 264mm billet bolt-together spragless torque converter

🏆Nick & David Diehl - Sick Summer Modified winner & new PB 6.69 run - Pro Series 264mm billet bolt-together spragless torque converter

🏆John Phillips - Wayne County Dragstrip Small Tire winner - Pro Series 264mm billet bolt-together spragless torque converter

🏆Mark Tralau - Blacktop Outlaws Festival Big Tyre winner - Pro Series 264mm billet bolt-together spragless torque converter

🏆Ben Wood - Blacktop Outlaws Festival Gangster 235 Tyre winner - Pro Series 252mm billet bolt-together spragless torque converter

🏆Jacob - Blacktop Outlaw Festival 1320 Street Tyre winner - Pro Series 252mm billet bolt-together spragless torque converter

🏆Brandon Burkhart - Hoosier No Prep Series True Street winner - Pro Series 252mm billet bolt-together spragless torque converter

🏆Ricky Shifflett - DMV N/T Heavy Hitters winner - Pro Series 264mm billet bolt-together spragless torque converter

🏆Ricky Shifflett - Elite 8 No Clock Street winner - Pro Series 264mm billet bolt-together spragless torque converter

🏆Joey Hiykel - Kearney Raceway Park winner - Pro Series 264mm billet bolt-together spragless torque converter

🏆Joey Hiykel - ORP Unglued No Prep Small Tire winner - Pro Series 264mm billet bolt-together spragless torque converter

🏆Joey Hiykel - Cordova Dragway Outlaws winner - Pro Series 264mm billet bolt-together spragless torque converter

🏆Beau Benham - Westx Abilene Raceway Freedom of War True Street winner - Pro Series 264mm billet bolt-together spragless torque converter

🏆Chase Womack - Westx Abilene Raceway Freedom of War Small Tire winner - all CDS final with LJ Grissom runner up - both cars utilize Pro Series 264mm billet bolt-together spragless torque converters

🏆Chase Womack - Tulsa Raceway Park Small Tire winner - Pro Series 264mm billet bolt-together spragless torque converter

🏆Brian Stephenson - Heads Up Havoc at SIR Small Tire Street Car winner - Pro Series 252mm billet bolt-together spragless torque converter

🏆Collin Thomas - Big Indian Drift Pit Pro Class winner - Pro Series 265mm billet welded mechanical diode torque converter

🏆Steve Carson - Brainerd International Raceway King Street winner - Pro Series 264mm billet bolt-together spragless torque converter

🏆Rowdi Gaines - Texas Vs. The World winner - Pro Series 264mm billet bolt-together spragless torque converter

🏆Tim Flanders - Milan Battle For The Bag index winner - Pro Series 252mm billet bolt-together spragless torque converter

🏆Tim Flanders - DTH Judgement Day Fastest Ford - Pro Series 252mm billet bolt-together spragless torque converter

🏆Corey James Ford - Backside Brawl Throwdown In The Shutdown Small Tire winner - all CDS final against Brandon May runner up - both racers use Pro Series 252mm billet bolt-together spragless torque converters

🏆Mike Corley - KD Cash Days Tailgate winner - Pro Series 264mm billet bolt-together spragless torque converter

🏆Eric Stubbs - Clash Of The Titans Birth Of A Titan N/T Small Tire winner - Pro Series 264mm billet bolt-together spragless torque converter

🏆Jarrett Bradshaw - Dig Or Die VII Dig Days Small Tire winner - Pro Series 252mm billet bolt-together spragless torque converter

🏆Justin Machacek - Thunder Valley Limited Small Tire winner - Pro Series 252mm billet bolt-together spragless torque converter

🏆Danny Bappert - MKE River Redemption Race #2 winner - Pro Series 264mm billet bolt-together spragless torque converter

🏆Austin Shepperson - Mexico Shootout winner - Pro Series 252mm billet bolt-together spragless torque converter

🏆Scott Cortina - IHRA Australian 235 radial tyre national record run 4.353 at 172.70 MPH - Pro Series 264mm billet bolt-together spragless torque converter

Thanks to all for choosing CDS!! We appreciate your business & support more than we can possibly say!!

08/03/2026

This has us sharing Karl Pritz joining the elite 3-second group of CDS racers with this new PB 3.99 run at 192 MPH!! 🚀

Karl has been pursuing a 3-second time slip for several years with his Mustang known as Oscar The Garbage Car. He has fought through a tremendous series of battles that would leave most others selling their operation well before ever reaching this milestone. Karl pulled off this feat with a single turbo small block combo weighing in at 2,645-lbs.

On board you'll find our Pro Series 264mm billet bolt-together torque converter. We have Karl set up with one of our custom CFD-modeled 5-axis CNC-machined billet steel airfoil stators in his converter. 😎

Here are the increments from the time slip:

💥1.046 60'
💥2.698 330'
💥3.997 600'
💥192.00 MPH

Karl's Fox is powered by a 430 cubic inch LS engine featuring a pair of Frankenstein Engine Dynamics LLC F710 cylinder heads topped off by a Trinity intake manifold from Brian Tooley Racing. Positive atmosphere finds it way to the cylinders thanks to a 122mm turbocharger from HPT Turbochargers. The small block is backed by a 2-speed TH400 from RPM Transmissions.

Karl handles the tuning himself & is available for a variety of custom tuning services via his business; K.P. Tuning. 💻

07/30/2026

📢NEW VK56 **AND** NEW S2000 RECORDS!!📢

Eric Jarvis of Mad Scientist Auto set a new Nissan VK56 record AND a new S2000 record all in the same run!! Check it out:

💥1.1066 60'
💥2.8813 330'
💥4.3191 660'
💥169.94 MPH

We are proud to have our Pro Series 252mm billet bolt-together spragless torque converter on board Eric's program. We have Eric set up with our popular & proven 240F210 airfoil stator in this unit. 😎

Eric's VK combo is based on a stock Nissan engine block with stock sleeves, a stock crankshaft, CP-Carrillo forged rods & pistons, and a set of custom Kelford Cams which ride in a set of as-cast Nissan VK cylinder heads.

A pair of 8082 HTZ Forced Performance Turbochargers feed 55 PSI of boost to a custom billet intake manifold from Import Drag Solutions. The rowdy VK powerplant is managed by a Nexus R5 from Haltech, and is backed by a close ratio TH400 transmission.

07/30/2026

📢NEW GEN V LT RECORD!!!📢

Chase Davis & Cameron Davis just reset the Gen V LT record on only their second outing with this brand new combo!!

Check out the increments from this run:

💥1.0808 60'
💥2.8007 330'
💥4.1924 660'
💥176.33 MPH

This hot rod is equipped with our Pro Series 264mm billet bolt-together spragless torque converter featuring one of our proprietary CFD-modeled 5-axis CNC-machined billet steel airfoil stators. 😎

The hydraulic roller LT mill receives positive atmosphere from a Precision Turbo & Engine X275-legal 88mm turbo while Jessie Coulter of Jessie's Garage provides the tune-up magic. Backing up this potent powerplant is a custom 2-speed TH400 transmission built by Advanced Racing Transmissions. 💪🏼

Address

5003 Langfield Road
Houston, TX
77040

Opening Hours

Monday 7:30am - 5pm
Tuesday 7:30am - 5pm
Wednesday 7:30am - 5pm
Thursday 7:30am - 5pm
Friday 7:30am - 5pm

Telephone

+17138958834

Website

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