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Hays Twister 3/4 Race Torque Converter, 1977-UP GM TH350C w/Lock-Up; 9.6" diameter torque converter with 10-3/4" bolt pattern (Will not work in standard TH350), 2800-3200 RPM stall

Hays Twister 3/4 Race Torque Converter, 1965-91 GM TH400; 9.6" diameter torque converter with 11-1/2" bolt pattern, 2400-2800 RPM stall

Hays Twister Full Race Torque Converter 1984-UP GM 4L60E, 2800-3200 RPM stall; 9.6" diameter torque converter with 10-3/4" bolt pattern, 2800-3200 RPM stall

Hays Twister 3/4 Race Torque Converter, 1965-91 GM TH400; 9.6" diameter torque converter with 11-1/2" bolt pattern, 2800-3200 RPM stall

Hays Twister Full Race Torque Converter for 1992-UP GM 4L60E/4L65E,2400-2800 RPM; 9.6" diameter torque converter with 11-1/8" bolt pattern, 2400-2800 RPM stall

Hays Twister 3/4 Race Torque Converter, 1984-91 GM 700R4; 9.6" diameter torque converter with lock-up 30 spline input, 10-3/4" bolt pattern, 2400-2800 RPM stall

Hays Twister 3/4 Race Torque Converter, 1984-91 GM 700R4; 9.6" diameter torque converter with lock-up 30 spline input, 10-3/4" bolt pattern, 2800-3200 RPM stall

Hays Twister Full Race Torque Converter for 1992-UP GM 4L60E/4L65E,3200-3600 RPM; 9.6" diameter torque converter with 11-1/8" bolt pattern, 3200-3600 RPM stall

HAYS TWISTER 3/4 RACE TORQUE CONVERTER, 1984-91 GM 700R4; 9.6" Diameter Torque Converter with Lock-Up 30 Spline Input, 10-3/4" Bolt Pattern, 3200-3600 RPM stall

Hays Twister Full Race Torque Converter GM 4L80E - 2400-2800 RPM Stall; 9.6" Diameter Torque Converter with 11.50" Bolt Pattern - 2400-2800 RPM Stall

Hays Twister 3/4 Race Torque Converter, 1982-UP GM 700R4/200R4; 9.6" diameter torque converter with lock-up 27 spline input, 10-3/4" bolt pattern, 2800-3200 RPM stall

Hays Twister Full Race Torque Converter GM 4L80E - 2800-3200 RPM Stall; 9.6" Diameter Torque Converter with 11.50" Bolt Pattern - 2800-3200 RPM Stall