Tremec Pro-Fit TKX 5-Speed Systems - Engine Builder Magazine

Tremec Pro-Fit TKX 5-Speed Systems

The new Pro-Fit 5-speed system features the new Tremec TKX transmission with 600 lb.-ft. of torque capacity with shifts up to 8,000 rpm.

American Powertrain has introduced its new Pro-Fit 5-speed system for classic Corvettes featuring the all new Tremec TKX 5-Speed. The new TKX Pro-Fit kit fits vintage Corvettes like an original GM manual transmission with the correct shift position and tunnel fit. The new TKX features a streamlined case for improved fitment with zero tunnel modifications. American Powertrain modifies the TKX shifter location that mimics the stock 4-speed fitment and shifter location. Replica shifter handles and shift pattern plates finish out the look for factory original. 

The new Pro-Fit 5-speed system features the new Tremec TKX transmission with 600 lb.-ft. of torque capacity with shifts up to 8,000 rpm. The system comes with American Powertrain’s patented driveshaft yoke, brand new DOM driveshaft and all installation parts for easy installation without having to remove the engine. The Pro-Fit kits are covered by American Powertrain’s two year warranty and comprehensive tech support.

American Powertrain is a Tremec Elite Distributor located in Cookeville, TN, which manufactures and sells Pro-Fit modern overdrive transmission systems, Hydramax hydraulic clutch systems, X-Factor Cross Members and thousands of powertrain accessories for muscle, sports, street rod and race cars. 

For more information about the new Tremec TKX 5-speed, view this video, or visit americanpowertrain.com.

You May Also Like

Expanded Inline Fuel Filter Offerings from System 1

System 1 Filtration Products offers a wide selection of inline fuel filters for competition and street applications. They range in size from the large diameter long filter at 9” x 2-1/2” to the compact “Pro Street” model that measures 4-1/2”in length by 2” diameter. All are CNC-machined from 6061-T6 aluminum billet at System 1’s Tulare,

System 1 Filtration Products offers a wide selection of inline fuel filters for competition and street applications. They range in size from the large diameter long filter at 9” x 2-1/2” to the compact “Pro Street” model that measures 4-1/2”in length by 2” diameter. All are CNC-machined from 6061-T6 aluminum billet at System 1’s Tulare, CA facility and black anodized.

Harrop TVS2650 Supercharger Kit for LT4 Engines

The Supercharger upgrade utilizes the largest, most-efficient rotating group ever produced by Eaton.

D&J 6.7L Ford Powerstroke X-Beam Rods 2017-2019

D&J has designed these rods with pressure-lubed wrist pins for the best in durability and performance.

Wiseco RED Series Forged Pistons

RED series piston kits are available for a range of popular, domestic V8 platforms for applications from drag racing to circle track.

PAC Small Diameter Solid Roller Springs

These springs are an excellent upgrade choice in any engine platform running a solid roller type lifter.

Other Posts

Cometic Gasket GM L83 Gen-5 Gasket Kit

The gasket kit features a 3.875″ bore and an .058″ MLX cylinder head gasket among other items.

Jesel Cam Belt Drive Systems

Built with quality materials, Jesel’s camshaft belt drives feature several performance and valvetrain stability enhancements over traditional timing chains and gear drives.

Silver Seal Deluxe Valve Stem Height Gauge Set

The height gauge set includes a .001″ dial indicator with a solid billet aluminum base.

Motor State Distributing ’23-’24 Engine Builders Parts & Accessories Catalog

This sourcebook continues to serve the needs of engine builders throughout the performance industry.