Torque Converter Upgrade Guide

Performance converters for every transmission

Complete reference for torque converter upgrades — from 4L60E billet converters to 68RFE diesel builds. Includes stall specs, symptoms, and FAQ.

4L60E6L8068RFE700R44R100TH400
TransmissionConverterStall SpeedTypeNotes
4L60ECircle D 3200 Stall3200 RPMBilletBest for LS swap builds, 700hp rated
4L60EBillet 2800 Stall2800 RPMBilletStreet/strip, mild cam builds
4L80E3000 Stall Billet3000 RPMBilletHeavy duty trucks, high torque
6L80Circle D 6L80 Upgrade2400 RPMBilletGen V LT engine applications
6L80E6L80E Performance2600 RPMBilletCamaro SS, Corvette C7 builds
6L506L50 Upgrade2200 RPMBilletSmaller displacement V6/V8
68RFEBillet 68RFE2400 RPMBilletCummins diesel, high torque rated
700R4Lockup Kit 28002800 RPMLockupLockup converter kit for overdrive
TH4003000 Stall TH4003000 RPMBilletClassic muscle, BBC/SBC builds
TH3502800 Stall TH3502800 RPMBilletClassic GM, street performance
5R555R55 Rebuild2000 RPMStockFord Explorer/Ranger applications
4R1007.3 4R100 Billet2200 RPMBilletPower Stroke diesel, heavy duty
A904A904 Stall2400 RPMPerformanceMopar small block applications
42RLE42RLE Upgrade2000 RPMPerformanceJeep Wrangler/Cherokee
4T65E4T65E Performance2200 RPMPerformanceFWD GM V6 applications