Hays Twister Full Race Torque Converter 1965-91 GM TH400, 2800-3200 RPM stall Ford/Excursion " Its performance is extensively tested

Its performance is extensively tested using Computational Fluid Dynamics software

the stock input shaft can break or twist

The 12-927 is rated for continuous duty service and have been tested up to 2

QST Turbine blade thickness decreased by 25 percent allowing for higher turbine gas flow and increased efficiency

HD220 Superiority - Outperforms standard 8740 chromoly studs in tensile strength and fatigue resistance

Hays Twister Full Race Torque Converter 1965-91 GM TH400, 2800-3200 RPM stall Ford/Excursion " Its performance is extensively testedHays Twister Full Race Torque Converters feature a custom designed anti balloon plate to stop any converter ballooning and swelling in racing situations. These torque converters are designed for use with a trans brake and great for power adders such as nitrous, superchargers, and turbos. They are available with various RPM stall speed offerings to accommodate any mixture of modifications including higher compression ratios, aftermarket camshafts,