2001 - 2016 Duramax (LB7, LLY, LBZ, LMM, LML)
DESIGNED & MANUFACTURED IN-HOUSE
TIG WELDED, FURNACE BRAZED & SILICON BRONZE REINFORCED TURBINE
PROPIETARY ALTO HIGH PERFORMANCE MULTI-DISC LOCKUP CLUTCHES
K-FACTOR & TORQUE RATIO TESTED ON IN-HOUSE DYNAMOMETER
LIMITED LIFETIME WARRANTY
BELOW 0.005 BLUEPRINTED RUNOUT TOLERANCES
BILLET STATOR GUARANTEED TO NEVER BREAK
DUAL TORRINGTON BEARING STATOR DESIGN
MULTI-BOLT PATTERN BILLET FRONT COVER
BLUEPRINTED INTERNAL CLEARANCES
FULLY PRESSURIZED & LEAK TESTED
PATENTED FLUID FLOW DEFLECTOR
COMPUTERIZED ROBOTIC WELDING
BILLET LOCKUP ASSEMBLY PISTON
4140 HARDENED TURBINE HUB
4140 FLANGED IMPELLER HUB
ACCURATELY DESIGNED PILOT
LUGGED STATOR RACES
BILLET BEARING CAP
The chart below shows the K factor and torque ratios as related to our converter stalls. Below is how to interpret the K-Factor and Torque Ratio numbers: The lower the k factor number the better the converter will couple, the higher the k factor number the easier it will spool up. The torque ratio number is the torque multiplication number – i.e. if you have a 1.85 TR, for every 100 lbs of input torque the converter will deliver 185 lbs of output torque (this is at a 0 speed ratio or at converter stall ). This ratio will go down as the speed ratio goes up.
THESE STALL SPEEDS ARE ARRANGED IN ORDER FROM:
LOW STALL (TOP OF CHART) TO HIGH STALL (BOTTOM OF CHART)
ENGINE MODIFICATIONS WILL DIRECTLY AFFECT STALL SPEED.
IF YOU ARE CONSIDERING PURCHASING A "K" CONVERTER, PLEASE CALL IN TO DISCUSS YOUR APPLICATION & K FACTOR
|GOEREND CONVERTER||APPROX STALL||K-FACTOR||TORQUE RATIO|
|"G" BILLET STATOR||1800-1900 RPM||95||1.8|
|"X" BILLET STATOR||1800-1900 RPM||93||1.93|
|"E" BILLET STATOR||1800-2200 RPM||98||1.8|
|"C" STOCK STATOR||1900-2200 RPM||99||1.8|
|"DK" BILLET STATOR||1900-2200 RPM||98||1.88|
|"R" BILLET STATOR||2000-2200 RPM||101||1.85|
|"B" STOCK STATOR||2300-2500 RPM||110||2.0|
|"K" BILLET STATOR||2500-2700 RPM||-||1.65|
|"J" BILLET STATOR||2700-3000 RPM||113.5||1.94|
|"AR" BILLET STATOR||3200-3400 RPM||132||1.4|
Stall Speeds listed above are approximate & will vary based on engine torque - there is additional information to help you determine which converter would be best for your truck BELOW - if you have questions on which stall to order, please call us at (563) 778-2719. In the future we will be adding more information and are more than happy to explain the differences should you ask.
Allison converters that are ordered with a stock stator should NOT be used for sled pulling, boosted launches, towing, or drag racing. The stock stator is made from aluminum which becomes soft at high temperatures and may cause the stator to break, therefore completely ruining the converter. If you plan on doing any sled pulling, boosted launches, towing or drag racing, you must upgrade to a billet stator to avoid any possible damage.
TO SHIP TO HAWAII/ALASKA & ANY LOCATION OUTSIDE OF THE LOWER 48 STATES - PLEASE CALL FOR A QUOTE BEFORE PURCHASING. Please allow 2-4 business days before shipment. Fixed freight cost ONLY applies to UPS Ground Shipping. If you select anything other than ground freight on a converter order we will need to contact you to discuss availability & adjust freight amount. If you need a rush order, please call us at (563) 778-2719.
Torque Converter Core Charge: You must select the additional $200 core charge to complete your order. The core that is returned to Goerend Transmission must be a usable core of the same model (i.e. if you are purchasing a converter for a 2006 truck - the core you send back MUST be from a 2006 truck), NO part of the core may be rusty, NO part of the core may be damaged in any way. IF any of these statements are true about your core, you may receive only a partial credit towards your core OR you may not receive any of your core deposit back. When we receive a usable core of the same model that has not been modified, the core charge will be refunded with a credit to your credit card. If you have any questions about what cores are accepted - please call us! On this specific converter - you may keep your core for $200 instead of sending it back tous - if you choose to keep your core, please select the appropriate product option above. Click HERE to learn more about which types of cores are acceptable to send back to us. See our Shipping and Return page to learn how to safely return your core to us and receive your full core refund.
Posted by Unknown on Apr 13th 2017
Was recommended the X converter by Scott at SDP. I love this converter the lockup is so smooth almost cant tell when it does even racing i cant feel the lockup happen. A good smooth and solid lockup makes a big difference on the life of hard parts. was on a built LBZ making just under 700hp with just a built trans and this converter. No billet parts in the trans.
Posted by Nathan McCutchen on Apr 9th 2017
I absolutely love my "R" converter. Paired to my SDP built transmission it is awesome. Lockup is nice and smooth but firm. Not at all harsh like some of the competitors. I can really feel how it will help prolong the life of a built transmission! Would not hesitate to recommend Scott or Goerend to anyone!
Posted by Joe Martinez on Mar 12th 2017
I had Mike at Inglewood Transmission build my Trans 17 months ago. Mike recommended the "R" converter for my application, welding rig with stock fuel and air, so she's right around 11k lbs everyday. The transmission as a whole performs flawlessly, smooth crisp shifts and surprisingly smooth TC lock up under full power... EVERY TIME! You can't put a price on reliability when you depend on your rig to make a living... That's why I went with the best!
Posted by Brad Thompson on Mar 7th 2017
Always have good luck with goerend converters, great customer service and awesome product.
Converter works great for everyday driving, towing, racing, and sled pulling !
Posted by Cody Bradley on Mar 7th 2017
I purchased the Goerend X converter with the billet stator to be paired along with a built trans for my 07 LBZ Duramax. I couldn't be happier. This converter locks up great wither I'm Wot on my built trans race tune or pulling a trailer in my tow tune. I very satisfied with my choice to go with Goerend and I'd recommend this product to anyone.