258mm HP Series 8L90 Torque Converter

The Circle D Specialties GM 258mm HP Series 8L90 Factory Replacement Torque Converter is engineered as a robust upgrade for the original, often failure-prone, 8L90 torque converters. This converter boasts a billet front cover, a triple clutch lockup system, and a billet apply piston for superior strength and performance. Construction highlights include heat-treated steel splines, furnace brazed/hand TIG welded fins, and a flanged style hub, all contributing to its enhanced durability. The converter offers additional stall speed options, which require HP Tuners calibration to unlock their full potential.