Sun Coast does not rely on outsourcing. We design and manufacture our own torque converters in house. Because of this, we are able to supply almost any request in regard to stall, torque multiplication, efficiency, or custom application. This converter comes with our custom designed billet stator for much better torque and efficiency before lockup.
With the addition of the 1055, 1058 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.