LS Swap T56 Magnum Conversion Kit | LS1, LS2, LS3 and More

Name: LS Swap T56 Magnum Conversion Kit | LS1, LS2, LS3 and More
SKU: 0347cf1a85b1
Price: 4649.59 USD
Availability: InStock

$4,649.59

Speedway 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.

SKU: 0347cf1a85b1 Category: Manual Transmissions

Description

The LS Swap T56 Magnum Conversion Kit is a complete 6-speed manual transmission conversion package designed for Gen III and Gen IV GM LS engines, including LS1, LS2, LS3, LS6, LQ4, LQ9, LY6, L92, L76, L99, 4.8L, 5.3L, 5.7L, 6.0L, and 6.2L engines equipped with 6-bolt crankshafts. Built around the legendary TREMEC T56 Magnum 6-speed transmission, this kit delivers exceptional strength, smooth shifting, and double overdrive performance for street, pro-touring, restomod, and high-performance builds. It includes nearly everything required to complete a professional LS manual transmission conversion.

Rated to handle 700 lb-ft of torque and capable of shifting up to 7,800 RPM, the T56 Magnum features premium carbon and sintered bronze synchronizers, a 26-spline input shaft, and a heavy-duty 31-spline output shaft. The included bellhousing, performance clutch, billet steel flywheel, hydraulic release bearing, pilot bearing, wiring pigtails, and installation hardware make this one of the most complete LS transmission conversion packages available.

Features

Complete LS engine T56 Magnum conversion kit
Fits Gen III and Gen IV LS engines with 6-bolt crankshafts
Compatible with LS1, LS2, LS3, LS6, 4.8L, 5.3L, 5.7L, 6.0L, and 6.2L engines
Genuine TREMEC T56 Magnum 6-speed manual transmission
Rated for 700 lb-ft of torque
Smooth shifting up to 7,800 RPM
Double overdrive for improved fuel economy and highway cruising
Heavy-duty aluminum transmission case
Carbon and sintered bronze synchronizers
Performance clutch assembly rated for high-horsepower applications
SFI-approved billet steel flywheel
Heavy-duty steel bellhousing
Hydraulic throwout bearing included
Reverse lockout, reverse light, and electronic speedometer wiring included
Ideal for street performance, pro-touring, and LS swap projects

Gear Ratios

1st Gear: 2.66:1
2nd Gear: 1.78:1
3rd Gear: 1.30:1
4th Gear: 1.00:1
5th Gear: 0.80:1
6th Gear: 0.63:1
Reverse: 2.90:1

Specifications

Brand: TREMEC
Transmission Model: T56 Magnum
Transmission Type: 6-Speed Manual
Application: Gen III & Gen IV GM LS Engines
Torque Capacity: 700 lb-ft
Maximum Shift RPM: 7,800 RPM
Case Material: Aluminum
Input Shaft Diameter: 1.125 inches
Input Shaft Spline Count: 26
Output Shaft Diameter: 1.375 inches
Output Shaft Spline Count: 31
Bellhousing Material: Steel
Clutch Diameter: 10 Inches
Flywheel: 168-Tooth SFI-Approved Billet Steel
Speedometer Output: Electronic
Shifter Included: Yes
Bellhousing Included: Yes
Yoke Included: No
Fluid Capacity: Approximately 2.7 Quarts
Recommended Fluid: Dexron III/Mercon ATF

Kit Includes

TREMEC T56 Magnum 6-Speed Manual Transmission
Steel Bellhousing
Performance Clutch Disc
Heavy-Duty Pressure Plate
SFI-Approved Billet Steel Flywheel
Hydraulic Throwout Bearing
Pilot Bearing
Flywheel Bolts
Pressure Plate Bolts
Bellhousing Hardware
Reverse Lockout Wiring Pigtail
Reverse Light Wiring Pigtail
Electronic Speedometer Wiring
Installation Hardware

Transmission mounting bolts, transmission crossmember, transmission mount, driveshaft, and slip yoke are sold separately unless otherwise specified.

Recommended Applications

Ideal for:

Chevrolet Camaro LS Swap
Chevrolet Chevelle LS Conversion
Chevrolet Nova LS Swap
Chevrolet C10 LS Swap
Chevrolet El Camino
Chevrolet Bel Air
Chevrolet Impala
Chevrolet Corvette LS Projects
GM A-Body Builds
GM F-Body Builds
Street Rods
Restomod Projects
Pro-Touring Builds
High-Performance Street Cars

Compatible with Gen III and Gen IV LS engines featuring 6-bolt crankshafts. Not compatible with 1999–2000 6.0L engines with long crankshafts or 8-bolt/9-bolt crankshaft engines.

Installation Requirements

Installation may require:

M10 x 1.5 transmission mounting bolts
Transmission crossmember
31-spline slip yoke
Driveshaft length modification
Hydraulic clutch master cylinder
Transmission mount
Clutch pedal assembly
Dexron III/Mercon ATF
Bellhousing alignment verification with offset dowel pins if required

Professional installation is recommended to ensure proper drivetrain alignment, clutch operation, and long-term reliability.

Warranty

The LS Swap T56 Magnum Conversion Kit | LS1, LS2, LS3 and More is backed by a 1-Year Limited Warranty, covering defects in materials and workmanship under normal use and proper installation.

Why Choose the LS Swap T56 Magnum Conversion Kit?

The LS Swap T56 Magnum Conversion Kit is the ideal solution for enthusiasts looking to pair a modern LS engine with one of the strongest manual transmissions available. Featuring a 700 lb-ft torque capacity, double overdrive gearing, 7,800 RPM shift capability, SFI-approved billet flywheel, and a complete set of premium installation components, this kit delivers exceptional strength, smooth shifting, outstanding highway drivability, and proven reliability for street performance, pro-touring, and high-horsepower LS-powered builds.