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SBF 600HP TKX 5SP Wide Transmission and Clutch Conversion Kit
SKU: b503abe0496e
$4,278.39
In stockSpeedway Motors manual transmission or conversion package for performance, restoration, street, or racing applications. Verify engine, bellhousing, input shaft, shifter position, and vehicle fitment before ordering.
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The SBF 600HP TKX 5-Speed Wide Transmission and Clutch Conversion Kit is a complete drivetrain upgrade engineered for Small Block Ford (SBF) applications. Designed around the TREMEC TKX 5-speed manual transmission , this comprehensive conversion kit includes the essential components required to upgrade your classic Ford to a modern manual transmission capable of handling 600 lb-ft of torque and up to 750 horsepower . The kit is designed for excellent street manners while providing the durability needed for aggressive performance driving and occasional track use.
Featuring a wide-ratio TKX transmission , dual-disc clutch assembly , Quick Time steel bellhousing , hydraulic release bearing , and premium installation hardware, this kit provides smooth shifting, excellent clutch engagement, and exceptional long-term reliability. Whether you’re building a Mustang, Falcon, Fairlane, Torino, or custom Ford restomod, this package delivers a true bolt-in performance solution.
Features
Complete Small Block Ford TKX conversion kit
Genuine TREMEC TKX 5-speed wide-ratio transmission
Rated for 600 lb-ft of torque
Supports engines producing up to 750 horsepower
Wide-ratio gearing for excellent acceleration
Smooth shifting up to 7,500 RPM
Maximum engine speed rating of 8,000 RPM
Dual-disc clutch with stock-like pedal effort
Heavy-duty steel Quick Time bellhousing
Hydraulic throwout bearing included
Billet flywheel (balance option dependent)
Premium ARP fasteners and installation hardware
Compact transmission design requiring minimal tunnel modifications
Ideal for street, pro-touring, and performance applications
Gear Ratios
1st Gear: 3.27:1
2nd Gear: 1.98:1
3rd Gear: 1.34:1
4th Gear: 1.00:1
5th Gear: 0.72:1
Reverse: 3.00:1
Specifications
Transmission: TREMEC TKX 5-Speed Manual
Application: Small Block Ford (SBF)
Torque Capacity: 600 lb-ft
Maximum Supported Horsepower: Up to 750 HP
Shift Capability: 7,500 RPM
Maximum Engine RPM: 8,000 RPM
Case Material: Aluminum
Dry Weight: Approximately 99 lbs
Input Shaft Diameter: 1.0625 inches
Input Shaft Spline Count: 26
Output Shaft Diameter: 1.375 inches
Output Shaft Spline Count: 31
Shifter Positions: Three
Speedometer Output: Mechanical and Electronic
Bellhousing Material: Steel
Bellhousing Included: Yes
Clutch Type: 10.5-Inch Dual Disc
Hydraulic Release Bearing: Included
Recommended Fluid Capacity: 2.7 Quarts
Recommended Fluid: TREMEC High Performance Manual Transmission Fluid
Kit Includes
TREMEC TKX Wide-Ratio 5-Speed Transmission
Quick Time Steel Bellhousing
Ram 10.5-Inch Dual-Disc Clutch Kit
Billet Steel Flywheel (balance configuration dependent)
Hydraulic Throwout Bearing
Pressure Plate Hardware
Flywheel Hardware
Pilot Bearing
Installation Hardware
Detailed Installation Instructions
Recommended Applications
Ideal for:
Ford Mustang
Ford Falcon
Ford Fairlane
Ford Torino
Ford Maverick
Ford Ranchero
Mercury Cougar
Mercury Comet
Small Block Ford 289
Small Block Ford 302
Small Block Ford 347 Stroker
Small Block Ford 351W
Restomod Builds
Pro-Touring Vehicles
High-Performance Street Cars
Installation Requirements
Installation may require:
Compatible transmission crossmember
31-spline driveshaft slip yoke
Driveshaft length modification
Hydraulic clutch master cylinder
Transmission mount
Clutch pedal assembly
Proper flywheel balance selection (0 oz, 28 oz, or 50 oz depending on engine)
TREMEC High Performance Manual Transmission Fluid
Professional installation is recommended to ensure proper bellhousing alignment, clutch adjustment, and drivetrain performance.
Warranty
The SBF 600HP TKX 5-Speed Wide Transmission and Clutch Conversion Kit is backed by a 1-Year Limited Warranty , covering defects in materials and workmanship under normal use and proper installation.
Why Choose the SBF 600HP TKX 5-Speed Conversion Kit?
The SBF 600HP TKX 5-Speed Wide Transmission and Clutch Conversion Kit is the ultimate manual transmission upgrade for Small Block Ford enthusiasts seeking modern performance and reliability. With a 600 lb-ft torque rating , 750 HP capability , wide-ratio gearing , dual-disc clutch , and premium components from TREMEC , RAM Clutches , Quick Time , and ARP , this complete package delivers exceptional shifting performance, outstanding durability, and comfortable highway cruising, making it an ideal choice for street performance, pro-touring, and high-horsepower restomod builds.
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