SBF 600HP TKX 5SP Wide Transmission and Clutch Conversion Kit

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.