Not every 4L80E build wants a 4000 RPM flash. A 3000 RPM stall behind an LS keeps the converter tight enough to tow and cruise without the heat that a loose converter generates, while still coming up far enough to clear a mild cam off idle.

FTI Performance SRLS43082 Street Racer Series Billet Lock-Up Torque Converter Features:

• Fits GM 4L80E and 4L85E transmissions behind an LS engine.
• 3000 RPM stall speed.
• 9.500 in. converter diameter with 35 input splines.
• Computer-designed, CNC-machined billet front cover and billet lockup piston.
• Anti-ballooning flanged impeller hub.
• Furnace-brazed and heli-welded fins with a severe-duty sprague.
• 1.703 in. crank pilot diameter, bolt circle 10.750 in., 11.063 in. or 11.500 in.
• Balanced and built new, not remanufactured.
• Mounting hardware included.
• Sold individually.