70441 B&M Holeshot 2400 Torque Converter, 1998-up GM LS1 with 4L60E/4L65E
10.75 and 11.08-inch bolt circles. 2200-2600 RPM stall;Precision Balanced on Certified Balance Equipment; Copper Furnace Brazed Impeller and Turbine; New Precision Alloy Steel Impeller Hub; Race Proven Technology & Quality;