NEW T56 MAGNUM 6-Speed for GM LS, 2.97/0.50 Ratios

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Tremec Transmissions - Bare Units

NEW T56 MAGNUM 6-Speed for GM LS, 2.97/0.50 Ratios

Ordering

To ensure order accuracy, please call us to order or use our Request A Quote form to get a price quote within 24 hours.

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1-865-609-8187

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Kit Components

NEW T56 MAGNUM 6-speed manual transmission features:

700HP/700LB-FT rating.
Gear Ratios: 2.97 1st; 2.10 2nd; 1.46 3rd; 1.00 4th; 0.74 5th; 0.50 6th; 2.90 reverse.
1-1/8" x 26 spline GM input shaft.
31 spline output shaft.
Both Mechanical and Electronic speedometer outputs.
Three shift positions available: 18.9", 23.0", and 26.6" from the rear face of the engine block.

Available late March 2009 for mate-up to GM LS-series engines. Other applications coming soon!

NEW T56 MAGNUM 6-Speed for GM LS, 2.97/0.50 Ratios

Overview-Ordering

Click to enlarge

Introducing the Tremec® T-56 Magnum 6-speed manual transmission, the long awaited and highly anticipated replacement for the original T-56. Based heavily on the TR-6060, the all-new Magnum takes the best of Tremec’s® current OEM design and manufacturing technologies and combines them with the most popular features of their intensely popular TKO 5-speed. The result is the smoothest shifting greatest driving, strongest and most versatile 6-speed aftermarket transmission Tremec® has ever produced.

The T56 MAGNUM 6-speed manual transmission features:

700HP/700LB-FT rating.
Gear Ratios: 2.97 1st; 2.10 2nd; 1.46 3rd; 1.00 4th; 0.74 5th; 0.50 6th; 2.90 reverse.
1-1/8" x 26 spline GM input shaft.
31 spline Ford output shaft.
Both Mechanical and Electronic speedometer outputs.
Three shift positions available: 18.9", 23.0", and 26.6" from the rear face of the engine block.

Available late March 2009 for mate-up to GM LS-series engines. Other applications coming soon!

Speed Analyzer

GM Muncie / T10 vs. T56

1. Pick your T56:	T56 6-speed (550 Torque)	(Reduction in RPM: 20%, 38%)
	T56 6-speed (700 Torque)	(Reduction in RPM: 20%, 38%)
	T56 6-speed (700 Torque)	(Reduction in RPM: 26%, 50%)

2. Pick your tire size: / R-

3. Pick your cruising RPMs:

Results: The Best of Both Worlds!

Low Gear Acceleration AND Low RPM Cruising!

1st Gear Comparison		Final Gear Comparison
Stock Differential Ratio	TREMEC Accelerates like:	Stock Final Gear	TREMEC 5th Gear	TREMEC 6th Gear
	rear	mph	mph	mph
	rear	mph	mph	mph
	rear	mph	mph	mph
	rear	mph	mph	mph
	rear	mph	mph	mph
	rear	mph	mph	mph
	rear	mph	mph	mph
	rear	mph	mph	mph
Rolling diameter for selected tire: inches
TREMEC Gear Set:			Torque:
Muncie/T10 Gear Set: 1st=2.52:1; 4th=1:1

Testimonials

Recent Testimonials...

Walt Reynolds - '68 Z28 Camaro

I probably should have done this a long time ago but here I go. I am the original owner of a 1968 Z/28 Camaro. It has about 25000 original street miles and over 8000 1/4 mile drag strip passes. It still has original paint and interior except the carpet has been replaced a few times. In 2006 I went on my first Hot Rod Magazine Drag Week. At the time, the car had a Super T10 4-speed and 4:56 gears. It was not very fun to drive 1000 miles at 4000rpms! In 2007 I installed my Keisler T56 and 5:14 gears for Drag Week. The transmission made it so much easier to drive in the highway. 75 mph was about 2200RPMS in 6TH (.50) For this years (2010) Drag Week I changed the rear gears to 5:57 which is the ratio I used back in the 70's. For Drag Week 2010 I had set three goals. Make the whole round trip, lift the front wheels off the gound (pull wheelies), and ET in the 11's. Well I made the first two which isn't too bad. My car is an original 302. It is set up like an NHRA stocker. It is .030 over with a Lunati RL302 stock eliminator cam, Manley Rods, original intake manifold and 4053 (780 CFM) Holley carb and Summers Brothers spool and axles. It launches at 7000 RPM and I power shift @ 7500 RPM. This year David Freiburger of Hot Rod asked me if I would have my car lettered like it was for the 1970 Winternationals and I said yes. Here are some picturesof the car both ways. I want to thank Keisler for the great kit. It was very easy to install and works fantastic. I think I want to check out the new clutchless model!

Robert Kostash - '69 Camaro RS Yenko Pro-Tour

The shop that completed the Pro-Tour project has used Keisler 5 speed and 6 speed kits numerous times...they were keen to do another Keisler TKO600 for my car. I also highlighted the progress through the winter on Pro-Touring.com. The car now drives just super, with the tight shifting Tremec. I just love the overdrive!
Cheers, Rob
Alberta, Canada

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