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.

05/29/2026

HUGE congratulations to Keith Rhea of Wonder Racing, LLC. & the Morning Glory Motorsports crew on running their first ever 3-second pass!! 🚀🚀🚀

We're proud to have our Pro Series 264mm billet bolt-together spragless torque converter on board for this momentous occasion! As with all of our 264mm models, Keith's is equipped with our custom CFD-modeled 5-axis CNC-machined billet steel airfoil stator technology. 😎

Making this accomplishment all the more impressive is the fact that Keith's hot rod is powered by a 5.4L 4-valve Ford Modular engine featuring an OEM Ford production cast engine block as well as OEM Ford production cast cylinder heads. 🤯

Check out the increments from the run:

💥1.0551 60'
💥2.7003 330'
💥3.9961 660'
💥190.92 MPH

We're thrilled for Keith achieving this long sought after goal & are excited to see just how much deeper this Mustang will go into the 3's!! 🙌

We hope everyone enjoys the holiday and stays safe this weekend! 🇺🇸For any product or technical inquires, please e-mail ...
05/22/2026

We hope everyone enjoys the holiday and stays safe this weekend! 🇺🇸

For any product or technical inquires, please e-mail us at [email protected]

05/05/2026

Check out our buddy Kenny Dangler of Northern Performance laying down 2,044 WHP with his new 428 cubic inch hydraulic roller LS engine combo! 💪

The new bullet was built by Kenny himself in his shop & features a set of CIDHeads - Competition Induction Designs LS7 cast cylinder heads with custom port work done by CT Porting. A custom hydraulic roller camshaft designed & ground by Brian Tooley Racing provides valve motion via a set of Johnson Lifters. A Forcedinductions.com GTR 122mm turbo provides all the positive atmosphere needed to produce these stellar power output numbers, and did so at 35 PSI of boost on this pull. 😎

Power is routed to the tires through one of our Pro Series 264mm billet bolt-together spragless torque converters featuring our custom CFD-modeled 5-axis CNC-machined billet steel airfoil stator technology. 🚀

This we're featuring this absolute rocket ship of an S10 campaigned by the father-son duo of Steven & Isiah Carter. 🚀T...
04/29/2026

This we're featuring this absolute rocket ship of an S10 campaigned by the father-son duo of Steven & Isiah Carter. 🚀

This hot rod pick-up has been as quick as 3.89 so far courtesy of an ACE Racing Engines 400 cubic inch LS engine featuring a Noonan Race Engineering billet block, cast LS7 heads from CIDHeads - Competition Induction Designs, a custom Brian Tooley Racing camshaft, and 114mm single turbo.

One of our Pro Series 264mm billet bolt-together spragless torque converters backs up the potent small block powerplant. As with all of our 264's, Steven & Isiah's features one of our premium CFD-modeled 5-axis CNC-machined billet steel airfoil stators. Our converter sends all that ACE power back to the 275's through a close ratio 3-speed TH400 transmission. 😎

Got a cool pic of your ride hanging the hoops with a CDS converter on board? Post 'em up in the comments below! 📸

This # we're showcasing the killer Ford Falcon built & campaigned by Dalton Stout.Dalton recently ran a PB 4.99 pass a...
04/24/2026

This # we're showcasing the killer Ford Falcon built & campaigned by Dalton Stout.

Dalton recently ran a PB 4.99 pass at 142 MPH using one of our Pro Series 245mm billet single disc 4L80E '3C' torque converters!! Check out that stout 1.18 short time, too! 👀

We believe this may be the quickest pass made so far by any customer using one of our 245mm torque converters! 🚀

Dalton's little shoebox Ford is packing some punch under the hood in the form of a 383 cubic inch LS engine equipped with a ProCharger Superchargers F-1X head unit. The combo runs on E85 & is backed by a transbrake-equipped 4L80E transmission. Race weight on this street car checks in at 3,100-lbs. 😎

Time for !!S/O to the following customers who have recently won events while using our torque converters:🥇Jason Hoard -...
04/22/2026

Time for !!

S/O to the following customers who have recently won events while using our torque converters:

🥇Jason Hoard - Limited Small Tire Winner at Bonne Terre Drag Strip 3/22/26 - Pro Series 252mm billet bolt-together spragless torque converter

🥇Jason Hoard - Small Tire Winner at Bonne Terre Drag Strip 4/4/26 - Pro Series 252mm billet bolt-together spragless torque converter

🥇Jason Hoard - 5.30 Winner at Bonne Terre Drag Strip 4/19/26 - Pro Series 252mm billet bolt-together spragless torque converter

🥇Ryan Tolley - Small Tire Winner at Carolina Cash Days: The Warm Up At Shadyside - Pro Series 264mm billet bolt-together spragless torque converter

🥇David Taber - Small Tire Winner at 1st State No Prep - all-CDS final round against Vincent Biondolillo - both racers utilize Pro Series 252mm billet bolt-together spragless torque converters

🥇David Taber - Small Tire Winner at Season Opener At The Airport - Pro Series 252mm billet bolt-together spragless torque converter

🥇Joey Salas - Street Style Winner at FLorida N/T Racing Battle In The Bay 9 - Pro Series 264mm billet bolt-together spragless torque converter

🥇Joey Salas - Grudge Race Winner at Bradenton - Pro Series 264mm billet bolt-together spragless torque converter

🥇Mark Mattalina - Invitational OG Winner at FLorida N/T Racing Battle In The Bay 9 - Pro Series 264mm billet bolt-together spragless torque converter

🥇Chase Womack - Small Tire Winner at Bounty Hunters 10 - Pro Series 264mm billet bolt-together spragless torque converter

🥇James Falgout - Daily Driver Winner at Social Saturday I Bet You Won't at No Problem Raceway - Pro Series 245mm billet single disc 4L80E torque converter

🥇Beau Benham - True Street Winner at Bounty Hunters 10 - Pro Series 264mm billet bolt-together spragless torque converter

🥇John Manckia - Lil Gangstas Winner at Carolina Gold Shadyside Dragway - Pro Series 252mm billet bolt-together single disc 4L80E torque converter

🥇Jarrett Bradshaw - 26's Winner at Dig Or Die - Flashlight Fiesta 6 - Pro Series 252mm billet bolt-together spragless torque converter

🥇Jarrett Bradshaw - Cleetus AWD Vs. RWD Winner - Pro Series 252mm billet bolt-together spragless torque converter

🥇Robert Huff - Limited Outlaw Winner at Knoxville Dragway - Pro Series 252mm billet bolt-together spragless torque converter

🥇Sid McMullen - Street / Outlaw Street Winner at 956 Spring Mayhem 3.0 - Pro Series 252mm billet bolt-together spragless torque converter

🥇Ricky Shifflett - Elite 8 Winner at No Clock Street Series MIR - Pro Series 264mm billet bolt-together spragless torque converter

🥇Jerry Buesig - Shootout Winner on the streets of Mexico with a $9K payday - Pro Series 252mm billet bolt-together spragless torque converter

🥇Tyler Baber - Street Car Elite Winner at Street Car Braggin Rights - Pro Series 264mm billet bolt-together spragless torque converter

🥇Tyler Baber - Extreme 28's Winner at Street Car Braggin Rights - Pro Series 264mm billet bolt-together spragless torque converter

🥇Lou Iocapetti - Shootout Sport Winner at Street Car Braggin Rights - Pro Series 252mm billet bolt-together spragless torque converter

🥇Ben Wood - Pro Street Class Winner at Rocky Nats - Pro Series 252mm billet bolt-together spragless torque converter

🥇Jordan Stroud - Small Tire Winner at Amarillo Dragway - Pro Series 264mm billet bolt-together spragless torque converter

Congratulations to all & THANK YOU for choosing Circle D Specialties!!

Come see us at Mustang Week!With members from our Sales and Tech teams at Mustang Week, response times may be a bit slow...
04/17/2026

Come see us at Mustang Week!

With members from our Sales and Tech teams at Mustang Week, response times may be a bit slower today. We’ll be back to full go on Monday!

Thank you for your patience, and we hope to see you guys out there!

This we'd like to acknowledge this very special event win & incredible accomplishment by Jarrett Bradshaw with his vic...
04/15/2026

This we'd like to acknowledge this very special event win & incredible accomplishment by Jarrett Bradshaw with his victory at the Cleetus AWD vs RWD race in Florida. Jarrett is the very first RWD winner ever in the history of this event & was rewarded with a $43K payday as a result! 💪🥇

Jarrett is one of the fiercest, most tenacious competitors in small tire racing with an unmatched work ethic & once of the best sorted, finely tuned combinations currently in the scene. Rather than rely on big dollars or billet components, Jarrett spends countless hours testing & refining a relatively simple combination that proves less really can be more. 😎

Jarrett also happens to be the winningest customer in the history of Circle D Specialties customers with over double the amount of event wins of any other customer in company history!!

We are proud to have a small part in Jarrett's most excellent program & are honored that he relies on our Pro Series 252mm billet bolt-together torque converter along with our custom CFD-modeled billet steel airfoil stator technology to help keep Willie Dynamite in the Winners Circle. 🏁🏁🏁

ALWAYS on our Relentless Pursuit to Perfection, even when it comes to crate and pallet destruction! 😎 🚧S/o to for helpi...
03/31/2026

ALWAYS on our Relentless Pursuit to Perfection, even when it comes to crate and pallet destruction! 😎 🚧

S/o to for helping us add a new machine to the fleet! We look forward to putting this bad boy to use, and freeing up some space for more converters and casings! 🔥

Any name suggestions??? Let us know!

Come see us at TX2K26! Booth 108!With members from our Sales and Tech teams at 2K, response times will be a little slowe...
03/20/2026

Come see us at TX2K26! Booth 108!

With members from our Sales and Tech teams at 2K, response times will be a little slower this week. We’ll be back to full go on Monday!

Thank you for your patience, and we hope to see you guys out there! 💯

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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