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    T56 Magnum 6-Speed Conversion Package | 1963-1965 Corvette | LS Engine
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    T56 Magnum 6-Speed Conversion Package | 1963-1965 Corvette | LS Engine

    Description ▼▲

    Key Features

    • TREMEC T56 Magnum transmission with 700 lb-ft torque capacity - nearly double the original T56 strength
    • Double overdrive gear ratios available for reduced highway RPM and improved fuel efficiency
    • Complete conversion package with transmission, bellhousing, clutch, hydraulic system, and driveline components
    • 26-spline input shaft and 31-spline output with 4616 chromoly gears and one-piece countershaft
    • Triple-cone synchronizers on lower gears for crisp, precise shifts under load
    • Dual speedometer pickups accommodate mechanical or electronic speedometers
    • Fiberglass tunnel extension included for proper Magnum fitment in C2 Corvette chassis
    • Configurable package - select transmission ratio, clutch type, hydraulics, and driveshaft to match your build

    Description

    Converting your 1963-1965 C2 Corvette with an LS powerplant to a modern 6-speed manual demands more than just bolting in a transmission - it requires a complete, integrated drivetrain solution. This TREMEC T56 Magnum conversion package delivers everything needed to mate your LS engine to the strongest 6-speed manual transmission in the aftermarket, transforming your mid-year Corvette into a highway-devouring grand tourer without sacrificing the visceral driving experience that makes a manual gearbox irreplaceable.

    The T56 Magnum represents the pinnacle of TREMEC's aftermarket transmission development. Based on the TR-6060 architecture found in factory muscle cars like the Dodge Viper and Chevrolet Camaro, the Magnum handles 700 lb-ft of torque through gears featuring substantially increased face widths and 2-piece laser-beam welded construction for precise tooth angle and pitch control. The one-piece countershaft eliminates the weak splined junction of earlier T56 designs, while a robust combination of triple-cone and double-cone synchronizers delivers remarkably short, low-effort shift throws with crisp engagement. At approximately 135 pounds dry, the Magnum adds minimal weight to your C2's already well-balanced chassis.

    Due to the Magnum's larger case dimensions compared to original Corvette transmissions, tunnel modifications are required for proper installation. This package includes a fiberglass tunnel extension designed to bond directly to the OEM C2 body, providing clearance for the transmission while maintaining a clean, finished appearance in the cockpit. Multiple gear ratio options let you choose between close-ratio setups for spirited driving or wide-ratio configurations with deeper overdrives for relaxed cruising at lower RPM.

    MDL's guided package selection walks you through each component choice - from bellhousing and clutch configuration to hydraulic release system and custom driveshaft - ensuring every part works together as a complete system. Whether you're building a pro-touring weapon or a refined cruiser, this package provides the foundation for a drivetrain that matches modern performance expectations while preserving the classic Corvette experience.

    Package Components Available

    • TREMEC T56 Magnum 6-speed transmission (multiple gear ratio options)
    • Bellhousing options for LS engine applications
    • Bellhousing-to-transmission hardware kit
    • Flywheel options (LS12367, LSX, LS9 applications)
    • Flywheel bolt sets (standard and ARP options)
    • Clutch kit options including single and dual-disc configurations
    • Hydraulic clutch pedal assembly
    • Hydraulic master cylinder kit (multiple bore size options)
    • Hydraulic release bearing
    • Hydraulic clutch line (24-inch)
    • T56 Magnum shift lever
    • Speedometer cable adapter
    • Speedometer drive gear (multiple tooth count options)
    • Speedometer gear retaining clip
    • Electronic speedometer harness
    • Reverse lockout controller
    • Reverse solenoid harness
    • Reverse light harness
    • Fiberglass transmission tunnel extension
    • Transmission mount
    • Dexron ATF transmission fluid (4 quarts)
    • Custom driveshaft (1350 series)
    • Lifetime technical support
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