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GM Converters
Suncoast logo GM Allison Torque Converter
1800 LOW STALL
VELOCITY CONVERTER

1800 LOW STALL
VELOCITY CONVERTER
$1,639.27
free shipping special with no handling fees
GM Duramax
$200.00 Core Charge
SKU# GM-1057-3D

GM Duramax
1800 LOW STALL VELOCITY CONVERTER
SKU# GM-1057-3D

This torque converter was designed with one purpose in mind, pulling. SunCoast initially developed this converter for the fleet customer who is on the road hot-shot driving, or pulling heavy loads.

The 1057 converter is 200-300 RPMs tighter than the factory converter. This converter will not spool an aftermarket turbo very well due to the efficiency of it. Your ideal customer for this converter would be a customer that tows and hauls. In-town fuel economy could improve with this torque converter.

NOTE: Suncoast orders require the year, make, and model of your truck to be placed in the comments field upon checkout to ensure your order is processed as soon as possible.

SunCoast Allison 1000 torque converters come in many varieties, from heavy hauling, sled pulling, drag racing, to daily driving. SunCoast designs and manufactures their torque converters in-house. Because of this, SunCoast can supply most any request in regards to stall or torque multiplication. All SunCoast triple disc converters are outfitted with a heavy duty forged billet steel cover and give an unbeatable lock up performance. The company's race series converter should be used in racing/pulling applications that require a higher "stall" RPM than a standard converter. Increased stall is usually needed in applications where a larger turbo or turbos have been installed and more RPM is required to get the turbo on boost while on the brakes (brake boosting).

These HD converters feature a billet stator and will resist damage to the stator section from excessive brake stalling (over 5 seconds).

Our 1057-3D converter established a benchmark for performance torque converters. Often referred to as theMcRat, it has set numerous records at the strip since it's inception in 2005. Our #57 series incorporates a modified OEM stator and is coupled with the “Velocity Series" impeller. It allows good turbo spool-up with stock size turbos running mild tunes and also offers more efficient fluid coupling than our #56 converter. If you’re running the larger turbos and the wild tunes and need to spool, see our #55, #58 or #59 series converters.

With the addition of the 1055, 1058 and 1059 to our Allison torque converter line we can accommodate any request in regard to stall, torque multiplication, efficiency, or other custom application. The stall test and RPM drops were tested with Stage V transmission, stock turbo with a 350HP tune, stock size tires in our 3500 dually. The example stalls and RPM drops are strictly to help you decide which may be best for your truck. Big tires without gear swaps will raise your brake stall test numbers.

Standard Features:

  • Custom pump and turbine modifications (in house)
  • Tig welding to reinforce furnace brazed fins
  • Proprietary converter clutches with trapezoid clutch teeth (no round tabs)
  • Forged billet cover strength (proprietary Raybestos converter)
  • 3 year unlimited mileage warranty

 
Thoroughbred Diesel logo glowing Thoroughbred Diesel Performance and Repair Shop
4843 Rockwell rd.
Winchester, KY 40391
Call Toll Free: 1-866-737-4966
Email:
sales@thoroughbreddiesel.com
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