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TREMEC
SBC 86-up Tremec T56 6 Speed Transmission Installation Kit, 700HP
SKU: 1e234ba61ca1
$5,147.99
In stockSpeedway Motors 6-Speed 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 SBC 86-Up Tremec T56 6-Speed Transmission Installation Kit, 700 HP is a complete transmission conversion package engineered to simplify the installation of a TREMEC T56 Magnum 6-speed manual transmission behind 1986 and newer one-piece rear main seal Small Block Chevrolet engines . Designed for enthusiasts building high-performance street cars, pro-touring machines, restomods, and muscle cars, this kit includes nearly every major component required for a professional-quality installation while eliminating the guesswork of selecting compatible parts.
At the heart of the kit is the TREMEC T56 Magnum , rated for 700 lb-ft of torque and capable of smooth shifting up to 7,800 RPM . The included performance clutch system supports engines producing up to 800 horsepower , while the 0.63:1 double overdrive allows aggressive rear axle gearing without sacrificing comfortable highway cruising. Designed for 1986-up Chevrolet 305 and 350 TBI/Vortec engines with a one-piece rear main seal , this installation kit provides a modern 6-speed driving experience with exceptional durability and reliability.
Features
Complete Tremec T56 Magnum installation kit for 1986-up Small Block Chevy engines
Designed for one-piece rear main seal SBC applications
Genuine TREMEC T56 Magnum 6-speed manual transmission
Rated for 700 lb-ft of torque
Performance clutch assembly rated for approximately 800 HP
Double overdrive transmission for improved highway cruising
Lightweight aluminum transmission case
Smooth high-RPM shifting up to 7,800 RPM
Steel bellhousing included
Hydraulic throwout bearing included
SFI-approved billet steel flywheel included
Pilot bearing, hardware, and installation components included
Reverse lockout, reverse light, and speedometer wiring pigtails included
Ideal for street performance, autocross, pro-touring, drag racing, and restomod 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
Transmission: TREMEC T56 Magnum
Transmission Type: 6-Speed Manual
Engine Compatibility: 1986-Up Small Block Chevrolet
Rear Main Seal: One-Piece
Engine Sizes: 305 CID (5.0L), 350 CID (5.7L) TBI & Vortec
Torque Capacity: 700 lb-ft
Clutch Capacity: Approximately 800 HP
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
Shifter Style: Linkage Operated
Tailshaft Length: 7.5 Inches
Bellhousing: Included
Shifter: Included
Slip Yoke: Not Included
Recommended Fluid: Dexron III / Mercon ATF
Fluid Capacity: Approximately 3.4 Quarts
Kit Includes
TREMEC T56 Magnum 6-Speed Manual Transmission
Steel Bellhousing
10-Inch Performance Clutch Disc
Heavy-Duty Pressure Plate
SFI-Approved Billet Steel Flywheel
Hydraulic Throwout Bearing
Pilot Bearing
Bellhousing Hardware
Flywheel Bolts
Clutch Bolts
Wiring Pigtails for:
Electronic Speedometer
Reverse Lockout
Reverse Light
Installation Hardware
Installation Instructions
Recommended Applications
Ideal for:
Chevrolet Camaro
Chevrolet Chevelle
Chevrolet Nova
Chevrolet El Camino
Chevrolet Monte Carlo
Chevrolet Malibu
Chevrolet C10 Pickup
Chevrolet Bel Air
Chevrolet Impala
Street Rods
Pro-Touring Builds
Restomod Projects
Small Block Chevy Performance Vehicles
Designed specifically for 1986 and newer one-piece rear main seal Small Block Chevrolet 305 and 350 TBI/Vortec engines . It is not compatible with 1985 and earlier two-piece rear main seal Small Block Chevrolet engines .
Installation Requirements
Installation may require:
Transmission Crossmember
Transmission Mount
31-Spline Slip Yoke
Custom or Modified Driveshaft
Hydraulic Clutch Master Cylinder
Clutch Hydraulic Lines
Dexron III / Mercon ATF
Bellhousing Alignment Check (dial indicator recommended)
Offset Dowel Pins if required
Professional installation is recommended to ensure proper bellhousing alignment, clutch operation, and drivetrain reliability.
Warranty
The SBC 86-Up Tremec T56 6-Speed Transmission Installation Kit is backed by a 1-Year Limited Warranty , covering defects in materials and workmanship under normal use and proper installation. Individual components may carry separate manufacturer warranties.
Why Choose the SBC 86-Up Tremec T56 Installation Kit?
The SBC 86-Up Tremec T56 6-Speed Transmission Installation Kit provides one of the easiest and most complete solutions for upgrading a modern Small Block Chevrolet to a world-class manual transmission. With a 700 lb-ft torque-rated T56 Magnum , 800 HP clutch system , double overdrive gearing , SFI-approved flywheel , hydraulic release system, and nearly every critical installation component included, this package eliminates compatibility concerns while delivering outstanding performance, reliability, and everyday drivability for serious street and performance builds.
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