HIGH-PERFORMANCE
CUSTOM TORQUE CONVERTERS

Highest Quality

Most Durable

Custom-Built

Unmatched Personal Service

High Performance Custom Torque Converters - Ultimate Converter Concepts

Quality & Durability

Ultimate Converter Concepts builds the finest, most durable high-performance custom torque converters available today!

Custom-Built

Our high-performance torque converters are custom-built to your specific requirements -- no "off-the-shelf" products at UCC.

Personal Service

You'll always talk directly to an experienced torque converter technician whenever you contact Ultimate Converter Concepts.

Send Your Specs to UCC

High performance torque converters to meet the needs and demands of today's racing and high performance enthusiast.

Ultimate Converter Concepts was conceived with the idea of producing the finest, most durable custom torque converters available on the market today.

The ULTIMATE Clients

Al Mark
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Allan Toetley
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Andy Kinash
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Angelo Sclafani
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Ben Mens
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Bill Marshall
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Butch Kemp
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Butch Kemp
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The ULTIMATE Team

Montgomery Ragland

Montgomery@UltimateConverter.com

Lenny Croteau

Lenny@UltimateConverter.com

Dawn Croteau

Dawn@UltimateConverter.com

Learn More About UCC

The ULTIMATE Testimonials

"I have alot of customers all over the country, and have used Lenny's converters for one reason, he is the best! I can give him the numbers of my power and torque, and he gets what I need right away, you can't beat his service either, he is quick and efficient, and being a racer I know all about this. Thanks."

Billy Glidden, Glidden Racing Engines
"Dear Lenny, I would like to sincerely thank you and Ultimate for providing me with the fastest and most consistent torque converters I have ever owned. As you know I race both Pro Tree and Full Tree. Your converters are the only ones that I have been able to be dead on, whether I'm on the stop or flat out. Your converters have helped me win multiple races, and most recently, the SGMP Super Buck Blast. Thank you again."

Brian Khoury
"I've been running one of Lenny's converters for some time now. Along with picking me up over one full tenth in ET the car has never been more consistent. When I go out and make 8 passes in a day and have an ET variant of only .007 across the entire day, I can't ask for more. I use Ultimate Converter Concept torque converters in all my customers rides and everyone has been 100% satisfied! Street, Strip, or combination of both, Ultimate gets it right the first time. All I can say is that Ultimate has helped me build a successful business by giving me a 1st class product and outstanding service. Thanks Lenny!!!"

Mark Smith
"Thank you Ultimate Lenny for selling us a converter that gives the stall speed we want down low and the efficiency we need up top. Your converters take a lot of the trick out of hooking a DOT radial and your patience and service are greatly appreciated."

Trace Meyer